Advantages of Metal Detectors with Rechargeable Batteries

Imagine the thrill of exploring the great outdoors, searching for buried treasures with a metal detector. From ancient coins to lost jewelry, metal detecting has captivated the hearts of adventurers and history enthusiasts alike. However, the performance and convenience of metal detectors heavily rely on the power source that fuels them. 

In this blog post, we will explore the numerous advantages of metal detectors with rechargeable batteries and how they enhance convenience, sustainability, and performance.

Understanding Metal Detectors

Metal detectors are electronic devices designed to detect the presence of metal objects hidden beneath the surface of the ground. They consist of several key components, including a control box, search coil, and shaft. 

When the search coil passes over a metal object, it generates an electromagnetic field that the metal detector detects and signals to the user. Metal detectors are used in a variety of applications, ranging from treasure hunting and archaeological surveys to security and industrial purposes.

The Rise of Rechargeable Batteries

Batteries play a crucial role in powering metal detectors. In the past, disposable batteries, such as alkaline or carbon-zinc batteries, were commonly used. However, they posed several challenges. 

Disposable batteries often required frequent replacements, leading to increased costs and inconvenience for metal detector enthusiasts. Additionally, the disposal of used batteries contributed to environmental pollution.

Fortunately, advancements in rechargeable battery technology have transformed the landscape of metal detecting. Rechargeable batteries offer numerous advantages over their disposable counterparts, including longer battery life, reduced environmental impact, and improved overall performance.

Advantages of Metal Detectors with Rechargeable Batteries:

1. Convenience and Cost-Effectiveness

   Metal detectors equipped with rechargeable batteries eliminate the need for frequent battery replacements. By simply recharging the batteries, users can extend their detecting sessions without interruption. This convenience not only saves time but also reduces the cost associated with purchasing disposable batteries regularly. While the upfront cost of rechargeable batteries and a charger may be higher, the long-term savings are significant.

2. Environmental Sustainability

   Rechargeable batteries contribute to environmental sustainability by reducing battery waste. Disposable batteries contain toxic chemicals that can harm the environment if not disposed of properly. With rechargeable batteries, the number of batteries thrown away decreases significantly, leading to a greener and more sustainable metal detecting practice.

3. Enhanced Performance and Reliability

   Metal detectors with rechargeable batteries offer improved performance and reliability. These batteries provide consistent power output throughout the detecting session, ensuring that the metal detector operates optimally. Unlike disposable batteries, which gradually lose power, rechargeable batteries maintain a steady voltage, resulting in more stable signals and enhanced sensitivity. This reliability is crucial for accurate target identification and minimizing false signals.

Types of Rechargeable Batteries for Metal Detectors

1. Lithium-ion Batteries

   Lithium-ion (Li-ion) batteries are widely used in various electronic devices, including metal detectors. They offer several benefits, such as high energy density, lightweight design, and a low self-discharge rate. Li-ion batteries have a longer lifespan compared to other rechargeable battery types, making them ideal for extended metal detecting sessions. They are also known for their fast charging capabilities.

2. Nickel-Metal Hydride (NiMH) Batteries

   Nickel-Metal Hydride (NiMH) batteries are another popular option for metal detectors. They have a higher energy density than Ni-Cd (Nickel-Cadmium) batteries and are less prone to the "memory effect" that can affect battery performance. NiMH batteries are rechargeable and have a longer lifespan, making them a sustainable choice. However, they may have a slightly higher self-discharge rate compared to Li-ion batteries.

Tips for Maximizing Battery Life

To maximize the battery life of your metal detector with rechargeable batteries, consider the following tips:

1. Battery Maintenance Best Practices

   - Regularly clean the battery contacts and terminals to ensure good electrical conductivity.

   - Avoid exposing the batteries to extreme temperatures, as it can affect their performance.

   - Store the batteries in a cool, dry place when not in use to prevent degradation.

2. Optimal Charging Techniques

   - Follow the manufacturer's guidelines for charging the batteries.

   - Avoid overcharging the batteries, as it can reduce their overall lifespan.

   - Use the recommended charger specifically designed for the type of rechargeable batteries you are using.

3. Storage and Usage Recommendations

   - If you won't be using the metal detector for an extended period, partially charge the batteries before storage. This helps maintain their capacity.

   - Avoid completely discharging the batteries, as it can lead to reduced performance. Recharge them before they are completely depleted.

   - If you anticipate long detecting sessions, consider carrying spare fully charged batteries as a backup.

Popular Metal Detectors with Rechargeable Batteries

1. Garrett AT Pro

   - This metal detector features a rechargeable lithium-ion battery pack.

   - It offers a robust and versatile performance for both land and water detecting.

   - The rechargeable battery ensures extended detecting sessions without the need for frequent replacements.

2. Minelab Equinox 800

   - The Equinox 800 is equipped with a built-in rechargeable lithium-ion battery.

   - It provides exceptional performance for various detecting environments, including beach, park, and field.

   - The rechargeable battery ensures consistent power and eliminates the hassle of disposable batteries.

3. XP Deus

   - The XP Deus metal detector uses a rechargeable lithium-ion battery pack.

   - It is known for its wireless technology and lightweight design, offering unparalleled freedom of movement during metal detecting sessions.

   - The rechargeable battery provides extended operating time and reliable performance.

Conclusion

Metal detectors with rechargeable batteries offer significant advantages over traditional disposable battery-powered detectors. They provide convenience, cost-effectiveness, environmental sustainability, and enhanced performance. 

With longer battery life, reduced environmental impact, and reliable power output, metal detector enthusiasts can fully immerse themselves in the joy of treasure hunting without interruptions or concerns about battery replacements. 

As rechargeable battery technology continues to evolve, we can expect even more innovative and efficient power solutions for metal detectors, further enhancing the metal detecting experience for enthusiasts worldwide. Embrace the power of rechargeable batteries and unleash the full potential of your metal detecting adventures.

Unveiling the Secrets of the Search Coil

Treasure hunting has always been an exciting activity for many people. Whether you are searching for lost artifacts, valuable coins, or buried treasures, the thrill of discovering something valuable is hard to resist. In recent years, metal detectors have become an essential tool for treasure hunters, archaeologists, and hobbyists alike. 

These devices use electromagnetic fields to detect and locate metal objects buried underground, providing a valuable tool for those who want to explore the hidden treasures of our past.

Metal detectors are complex devices with many components working together to detect and identify metal objects. However, one of the most critical parts of any metal detector is the search coil. 

The search coil is responsible for generating and detecting the electromagnetic fields used to locate metal objects buried underground. It is the primary sensing element of the metal detector, and its design and construction play a critical role in determining the device's performance.

In this blog, we will delve into the search coil of a metal detector, its significance, functionality, and types. We will explore how search coils work, the various types available, the factors that affect their performance, and how to maintain and care for them.

Understanding Metal Detectors

A. Definition

A metal detector is an electronic device that uses electromagnetic fields to detect and locate metal objects buried underground. Metal detectors consist of several components, including a control box, a shaft, a search coil, and headphones. These components work together to detect metal objects by transmitting and receiving electromagnetic signals.

B. Components of a metal detector

The control box is the brain of the metal detector, containing the electronics and controls for the device. It is typically mounted on the handle or the shaft of the metal detector and houses the battery, circuitry, and other components necessary for the device to function.

The shaft of the metal detector is the long handle that connects the control box to the search coil. It is usually adjustable to accommodate users of different heights and can be easily disassembled for storage or transportation.

The search coil is the sensing element of the metal detector and is responsible for generating and detecting electromagnetic signals. It is mounted at the end of the shaft and can be of various sizes, shapes, and types.

Headphones are typically used to listen to the audio signals produced by the metal detector. They allow the user to hear the faint sounds produced when the device detects a metal object.

C. Focus on the search coil

The search coil is the most critical component of a metal detector, as it is responsible for generating and detecting electromagnetic signals used to detect metal objects. It is the primary sensing element of the metal detector, and its design and construction play a critical role in determining the device's performance.

The Search Coil: What is it?

A. Definition and function

The search coil is a loop of wire that generates and detects electromagnetic signals. When an electric current flows through the wire, it creates a magnetic field around the coil. As the metal detector is swept over the ground, the magnetic field interacts with any metal objects in the soil, inducing an electrical current in the metal.

The induced current generates its own magnetic field, which interacts with the magnetic field of the search coil. This interaction produces a change in the electrical signal generated by the coil, which is detected by the metal detector's electronics. The signal is then amplified and processed to provide an audible or visual indication of the presence of a metal object.

B. Physical characteristics

Search coils come in various shapes and sizes, depending on the metal detector's design and intended use. The most common shapes are round, elliptical, and square. The size of the search coil can range from a few inches to several feet in diameter, with larger coils being more sensitive to deeper targets.

The construction of search coils varies, but they typically consist of a coil of wire wound around a non-metallic core, such as plastic or fiberglass. The wire used in the coil is often made of copper or another conductive material with good electrical conductivity. The number of turns of wire in the coil can vary depending on the desired sensitivity and depth of detection.

C. The role of electromagnetic fields

The search coil operates based on the principles of electromagnetic induction. When an electric current flows through the coil, it creates a magnetic field around it. As the metal detector is moved over the ground, this magnetic field interacts with any conductive material, such as metal, in the soil.

When the magnetic field of the coil encounters a conductive material, such as a metal object, it induces an electrical current within the metal. This current, in turn, generates its own magnetic field. 

The interaction between the induced magnetic field and the coil's magnetic field causes a change in the electrical signal produced by the coil. This change is then detected and processed by the metal detector's electronics to indicate the presence of a metal object.

How Search Coils Work

A. Induction principle

The functioning of search coils is based on electromagnetic induction. Electromagnetic induction occurs when a changing magnetic field induces an electric current in a conductor. In the case of metal detectors, the search coil's magnetic field changes as it encounters conductive materials, such as metal objects.

B. Transmitting and receiving signals

The search coil performs two essential functions: transmitting and receiving signals. When the metal detector is turned on, an electric current is passed through the search coil, creating a magnetic field. This magnetic field is emitted into the surrounding soil as the metal detector is swept over the ground.

When the search coil encounters a metal object, the changing magnetic field induces an electric current within the metal object. This induced current generates its own magnetic field, which interacts with the magnetic field of the search coil. As a result, the electrical signal produced by the search coil undergoes a change.

The metal detector's electronics detect and analyze these changes in the electrical signal, amplifying and processing them to provide an indication to the user. This indication can be in the form of an audible tone, a visual display, or both, depending on the metal detector's design.

C. Target discrimination

One of the key functions of search coils is target discrimination. Target discrimination allows metal detectors to differentiate between various types of metal objects. This feature is particularly useful for discriminating between valuable targets, such as coins or jewelry, and unwanted items, like nails or bottle caps.

Search coils achieve target discrimination by analyzing the characteristics of the electrical signals produced by different types of metal objects. The metal detector's electronics are programmed to recognize and distinguish the unique signatures of various metals. 

This enables the device to provide different responses or signals for different types of targets, allowing the user to selectively dig for desired objects while ignoring unwanted ones.

Types of Search Coils

A. Standard search coils

Standard search coils are the most common type of coils used in metal detectors. They are typically round in shape and come in various sizes, ranging from a few inches to over a foot in diameter. Standard coils provide a good balance between depth and sensitivity, making them suitable for general-purpose metal detecting in different environments.

B. Double-D (DD) coils

Double-D (DD) coils are another popular type of search coils. They are named after their shape, which resembles two D-shaped coils facing each other. DD coils have two overlapping windings, which generate a magnetic field in a specific pattern. This pattern enhances target detection and allows for better performance in highly mineralized soils.

DD coils are known for their excellent target separation capabilities. They can accurately identify multiple targets in close proximity without experiencing as much interference or signal masking. This makes DD coils ideal for areas with high trash or clutter, such as parks or beaches, where numerous objects may be present.

C. Concentric coils

Concentric search coils feature a cone-like design with a center transmitting coil and an outer receiving coil. The coils are concentrically positioned, meaning that the receiving coil surrounds the transmitting coil. This design enables better target pinpointing and precise target identification.

Concentric coils offer good discrimination capabilities, allowing users to differentiate between various metal objects based on their conductivity and size. They are also known for their efficient ground coverage and sensitivity to small or shallow targets. However, their performance in highly mineralized soils may be slightly affected compared to DD coils.

D. Specialized coils

In addition to standard, DD, and concentric coils, there are specialized search coils designed for specific purposes. These coils cater to specific metal detecting needs and can enhance performance in certain applications. 

Some examples of specialized coils include:

1. Elliptical coils

Elliptical coils have an elongated shape, resembling an ellipse. They offer increased maneuverability and better coverage in narrow spaces or uneven terrains. Elliptical coils are commonly used for searching in tight areas, such as dense underbrush, rocky terrains, or between tree roots.

2. Large coils

Large coils have a larger diameter, which allows for deeper detection capabilities. They are often used for detecting deeply buried or larger metal objects, such as relics, caches, or larger mineral deposits.

3. Small coils 

Conversely, small coils have a smaller diameter, offering increased sensitivity to small or shallow targets. They are ideal for target separation in trashy areas or when searching for small items like coins, jewelry, or gold nuggets.

It's important to note that specialized coils may require compatibility with specific metal detector models, so it's essential to ensure compatibility before purchasing or using them.

Factors Affecting Search Coil Performance

A. Size and shape

The size and shape of a search coil significantly impact its performance. Larger coils generally provide increased depth detection capabilities, allowing you to locate targets deeper underground. However, larger coils may sacrifice some sensitivity to smaller targets.

On the other hand, smaller coils offer enhanced sensitivity to small or shallow targets but may have reduced depth penetration. The choice of coil size depends on your specific detecting goals and the environment you plan to search in.

Additionally, the shape of the coil, whether round, elliptical, or square, can affect the coil's coverage area and maneuverability. Round coils offer good coverage and balance, while elliptical coils excel in tight or uneven spaces.

B. Frequency range

The frequency of a search coil refers to the number of electromagnetic waves it emits and receives per second. Metal detectors come with different frequency options, such as low frequency, medium frequency, and high frequency.

Low-frequency search coils, typically below 5 kHz, provide excellent depth penetration and are ideal for searching in highly mineralized or conductive soils. They are also more sensitive to larger targets but may not be as effective for smaller or low-conductivity targets.

Medium-frequency search coils, ranging from around 5 kHz to 15 kHz, offer a balance between depth penetration and sensitivity to smaller targets. They are versatile for various detecting applications and are commonly used by hobbyists and professionals.

High-frequency search coils, typically above 15 kHz, excel in sensitivity to smaller targets, such as tiny gold nuggets or jewelry. They are less affected by ground mineralization but may have reduced depth penetration compared to lower frequency coils.

The choice of frequency depends on the type of targets you are searching for and the ground conditions you will encounter. Each frequency range has its advantages and trade-offs, so consider your specific detecting needs and the environment you plan to search in when selecting the appropriate search coil frequency.

C. Ground conditions and mineralization

The mineralization of the soil or ground conditions can significantly impact the performance of search coils. Highly mineralized soils, such as those rich in iron, salt, or other minerals, can cause interference and create false signals, making it challenging to detect metal objects accurately.

In highly mineralized areas, search coils with better ground balance capabilities are preferred. Ground balance is a feature that allows the metal detector to compensate for the effects of mineralization, effectively canceling out the false signals caused by the soil. Some metal detectors have automatic ground balancing, while others offer manual adjustment options.

It's important to choose a search coil and metal detector combination that is suitable for the ground conditions you will encounter. Some coils are specifically designed for highly mineralized soils and offer improved performance in challenging environments.

Maintenance and Care for Search Coils

A. Cleaning techniques

Proper maintenance and care of search coils are crucial for their longevity and optimal performance. Regularly cleaning the search coil can help remove dirt, debris, and other contaminants that may affect its sensitivity and signal detection.

To clean the search coil, gently wipe it with a soft, damp cloth or sponge. Avoid using harsh chemicals or abrasive materials that can damage the coil's surface. If necessary, mild soap or specialized coil cleaning solutions can be used, following the manufacturer's instructions.

B. Coil protection

Protecting the search coil from damage is essential to ensure its longevity and functionality. Many metal detectors come with coil covers or skid plates that provide an extra layer of protection against scratches, bumps, and wear.

Using a coil cover can help safeguard the coil from abrasive surfaces, rocks, or rough terrains. It also helps prevent dirt, moisture, and debris from accumulating between the windings, which can impact the coil's performance.

C. Common issues and troubleshooting

While search coils are generally reliable, they may encounter occasional issues or performance problems. Some common issues include false signals, reduced sensitivity, or erratic behavior.

If you experience such issues, there are several troubleshooting steps you can take:

1. Check the coil connections

Ensure that the coil is securely attached to the metal detector's shaft and that the connections are clean and free from debris.

2. Test with different sensitivity settings

Adjust the sensitivity settings on the metal detector to find the optimal balance between depth and target detection capabilities.

3. Ground balance adjustment

If you are experiencing false signals or erratic behavior, try adjusting the ground balance settings to compensate for the soil mineralization.

4. Check for electrical interference

Nearby power lines, electrical equipment, or other metal detectors operating in close proximity can cause interference. Move away from potential sources of interference to see if the issue persists.

If the problem persists or you are unsure how to resolve it, consult the metal detector's user manual or contact the manufacturer or a professional service center for further assistance.

Conclusion

In conclusion, the search coil is a fundamental component of a metal detector, playing a crucial role in generating and detecting electromagnetic signals to locate buried metal objects. Understanding the functionality and characteristics of search coils, as well as the different types available, allows metal detector enthusiasts to make informed choices based on their specific detecting goals and environments.

By considering factors such as size, shape, frequency range, and ground conditions, users can select search coils that best suit their needs, whether it's for general-purpose detecting, specialized applications, or specific soil conditions.

Regular maintenance, including cleaning the search coil and protecting it with coil covers, helps prolong its lifespan and ensures optimal performance. Troubleshooting common issues and seeking professional assistance when needed can help resolve any performance problems.

With a deeper understanding of the search coil's significance and proper care, treasure hunters, hobbyists and archaeologists can maximize their metal detecting experience, increase their chances of finding valuable objects, and unlock the mysteries hidden beneath the earth's surface.

Metal detecting is a fascinating hobby that allows individuals to explore history, uncover artifacts, and experience the thrill of discovery. The search coil, as the primary sensing element of a metal detector, is instrumental in turning this hobby into a successful and enjoyable venture. 

By understanding how search coils work, the different types available, and the factors that affect their performance, enthusiasts can make informed decisions when selecting and using metal detectors.

Remember, each search coil has its own strengths and weaknesses, so it's essential to choose one that aligns with your specific detecting goals and the environments you plan to search in. With proper maintenance and care, your search coil can continue to serve you well for years to come.

So, whether you're a seasoned treasure hunter or a novice explorer, the search coil of a metal detector is a critical component that should not be overlooked. Embrace the excitement of the hunt, master the art of target discrimination, and let your search coil guide you to the hidden treasures waiting to be discovered. Happy hunting!

Metal Detector Control Boxes

      Metal detecting has long captivated adventurers, hobbyists, and history enthusiasts alike. The mere thought of stumbling upon a buried treasure or unearthing a relic from the past evokes a sense of excitement and wonder. While metal detectors are the primary tools for this pursuit, it is the metal detector control box that holds the key to unlocking the secrets hidden beneath the earth's surface.

       Metal detectors are electronic devices designed to detect the presence of metal objects buried underground. They consist of three main components: the search coil, the shaft, and the control box. 

The search coil is responsible for emitting and receiving signals, while the shaft provides stability and allows for adjustable height. However, it is the control box that serves as the brain of the metal detector, controlling its functions and providing valuable information to the user.

      The metal detector control box is a crucial component that enables users to adjust settings, interpret signals, and maximize the detection capabilities of their metal detectors. Understanding its inner workings, features, and how to optimize its performance can greatly enhance the chances of uncovering valuable artifacts and hidden treasures.

Understanding the Metal Detector Control Box

   A. Definition and purpose of the control box.

      The metal detector control box is a handheld device that houses the electronics responsible for controlling various functions of the metal detector. Its primary purpose is to receive signals from the search coil, process them, and provide users with crucial information such as target identification, depth, and discrimination settings.   

   B. Explanation of the control box's role in metal detection.

      The control box plays a vital role in metal detection by acting as the interface between the user and the metal detector. It allows users to adjust settings, such as sensitivity, discrimination, and ground balance, based on the specific conditions and targets they are searching for. The control box also provides audio and visual feedback to help users interpret the signals received from the search coil.     

   C. Key components and features of a control box.

      Control boxes typically feature an LCD or LED display for visual feedback, control knobs or buttons for adjusting settings, and audio output for alerting users to detected targets. Advanced control boxes may include additional features such as target identification (ID) systems, depth indicators, multiple search modes, and wireless connectivity for data transfer or headphone compatibility.

The Inner Workings of a Metal Detector Control Box

   A. Overview of the control box's circuitry.

      The control box contains a complex circuitry system that receives, amplifies, and filters the signals detected by the search coil. These signals are then processed by integrated circuits and microcontrollers to provide accurate target information to the user. The control box's circuitry also includes components like resistors, capacitors, and transistors, which help regulate power and control various functions.     

   B. Detailed explanation of the control box's functions and settings.

      1. Sensitivity

Adjusting the sensitivity setting determines the metal detector's ability to detect targets at different depths. Higher sensitivity settings increase the detector's range but may also lead to increased interference from mineralized soils or electromagnetic sources.

      2. Discrimination

Discrimination allows users to selectively ignore or accept certain types of targets based on their conductivity or metal composition. By setting discrimination levels, users can focus on specific target categories and avoid unwanted signals.

      3. Ground Balance

Ground balance compensates for the mineralization in the soil, which can interfere with target detection. It ensures that the detector's signals are not influenced by the surrounding soil and that users can detect targets accurately.

      4. Notch Discrimination

Notch Discrimination is an advanced feature that allows users to select specific target categories to ignore or accept. This feature is useful in areas with a high concentration of unwanted targets, such as bottle caps or pull tabs.

      5. Pinpoint Mode

Pinpoint mode is a function that helps users pinpoint the exact location of a target by reducing the search coil's detection field. This feature is particularly useful in locating small targets or those buried in clusters.

      6. Multiple Search Modes

Some metal detector control boxes offer multiple search modes that allow users to adjust settings for different types of targets or terrain conditions. Common search modes include All Metal, Discrimination, and Custom.

      7. Target ID System

Target ID systems provide users with valuable information about the type of target detected based on its conductivity or metal composition. This information can help users determine if a target is valuable or not.

      8. Depth Indicator

A depth indicator provides users with an estimate of a target's depth. This feature is helpful in determining whether a target is worth digging up.     

   C. Understanding the role of microcontrollers in control boxes.

      Microcontrollers are small computer chips that control the functions of the metal detector control box. They receive signals from the search coil, process them, and provide users with information about detected targets. Microcontrollers are responsible for controlling the audio and visual output of the control box and regulating power to various components.

Optimizing the Performance of Your Metal Detector Control Box

   A. Proper care and maintenance of the control box.

      Proper care and maintenance of the metal detector control box can greatly extend its lifespan and ensure optimal performance. This includes storing the control box in a dry and secure location, cleaning it regularly, and replacing batteries as needed.    

   B. Calibration and adjustment of the control box.

      Calibration and adjustment of the control box are critical to its optimal performance. Calibration involves adjusting the control box's settings to suit the specific search conditions, such as soil type or target type. Adjustment involves tweaking the control box's sensitivity and discrimination levels to improve its accuracy and reduce interference.   

   C. Importance of ground balancing.

      Ground balancing is a critical function of the metal detector control box that helps users detect targets accurately. It compensates for the varying levels of mineralization in the soil, which can cause false signals or interference. Users should always ground balance their metal detectors before beginning a search to ensure accurate target detection.    

   D. Understanding the impact of electromagnetic interference.

      Electromagnetic interference can have a significant impact on the performance of metal detector control boxes. It can cause false signals, reduce detection depth, and interfere with target identification. Users should be aware of potential sources of electromagnetic interference, such as power lines or other metal detectors, and adjust their settings accordingly.

Conclusion

      The metal detector control box is a crucial component that enables users to adjust settings, interpret signals, and maximize the detection capabilities of their metal detectors. Understanding its inner workings, features, and how to optimize its performance can greatly enhance the chances of uncovering valuable artifacts and hidden treasures.   

      Metal detecting is an exciting and rewarding hobby that can provide valuable insights into history and culture. By learning about metal detector control boxes and how to optimize their performance, enthusiasts can increase their chances of making exciting discoveries and uncovering hidden treasures.

Understanding Metal Detector Electromagnetic Fields

Metal detectors are commonly used in a variety of industries for detecting metal objects. The basic principle behind a metal detector is the use of an electromagnetic field to detect metal objects. 

In this blog, we will explore the topic of metal detector electromagnetic fields in more detail, including how metal detectors work, the different types of electromagnetic fields used in metal detectors, the metal detection process, interference and noise in metal detectors, applications of metal detectors, and the future of metal detector technology.

Electromagnetic Field Basics

An electromagnetic field is a type of field that is created by the movement of charged particles. These fields can be created naturally, such as in the Earth's magnetic field, or artificially, such as in the electromagnetic fields used in metal detectors. In metal detectors, an electromagnetic field is created by passing an alternating current through a coil of wire.

The alternating current passing through the coil creates a magnetic field, which fluctuates at a particular frequency. When this magnetic field encounters a metallic object, the metal object will generate its own magnetic field. 

This magnetic field is generated because the electrons in the metal object are forced to move in response to the magnetic field of the metal detector's coil. The metal detector detects this magnetic field generated by the metal object and produces an audio or visual signal to indicate the presence of metal.

There are two main types of electromagnetic fields used in metal detectors: pulse induction and very low frequency.

Pulse Induction

Pulse induction metal detectors use a single coil of wire to generate a series of brief electromagnetic pulses. These pulses generate a magnetic field that penetrates the ground and bounces back when it encounters a metallic object. The detector then detects the reflected signal and produces an audio or visual signal to indicate the presence of metal.

Very Low Frequency

Very low frequency (VLF) metal detectors use two coils of wire. One coil is used to generate a magnetic field, while the other coil is used to detect changes in the magnetic field. The detector uses a frequency that is low enough to penetrate the ground and detect metal objects, but high enough to avoid interference from other sources.

The Metal Detection Process

The metal detection process begins with the generation of an electromagnetic field by the metal detector. As previously mentioned, there are two main types of electromagnetic fields used in metal detectors: pulse induction and very low frequency. The type of electromagnetic field used depends on the type of metal detector being used.

Once the electromagnetic field is generated, it will penetrate the ground or any other material that it encounters. When the magnetic field encounters a metallic object, it will generate a secondary magnetic field in the metal object. This secondary magnetic field is detected by the metal detector's coil, which then produces an audio or visual signal to indicate the presence of metal.

The metal detection process is affected by a number of factors, including the type of metal detector being used, the size and shape of the metal object, and the depth at which the metal object is buried. The detection depth of a metal detector is dependent on the type of electromagnetic field used, the size and shape of the coil, and the conductivity of the material being scanned.

Interference and Noise

Interference and noise can negatively impact the performance of a metal detector. Interference refers to any signal that is not generated by the metal object being detected, while noise refers to any unwanted signal that is generated by the metal detector itself or by other external sources.

Interference can be caused by a number of factors, including power lines, cell phones, and other metal objects that are not being detected. Noise can be caused by the metal detector's electronics, nearby electrical sources, or other factors.

To reduce interference and noise, metal detectors can be shielded to prevent external signals from interfering with the detection process. Additionally, metal detectors can be designed with sophisticated signal processing algorithms that can distinguish between the signal generated by a metallic object and interference or noise. 

Some metal detectors are also equipped with ground balancing features that can adjust the detector's sensitivity to compensate for mineralization or other ground conditions that can cause interference.

Applications of Metal Detectors

Metal detectors are used in a variety of industries, including security, mining, archaeology, and food processing. In security applications, metal detectors are used to detect weapons or other dangerous objects that may be carried by individuals. 

In mining applications, metal detectors are used to detect and remove metallic objects from mined material to prevent damage to processing equipment. In archaeology, metal detectors are used to locate buried artifacts and other objects of historical significance. In food processing, metal detectors are used to detect and remove metallic contaminants from food products.

The advantages of using metal detectors include their ability to quickly and accurately detect metal objects, their non-destructive nature, and their versatility in a variety of applications. However, metal detectors also have some limitations, such as their inability to detect non-metallic objects and their limited range of detection.

Future of Metal Detector Technology

Metal detector technology is constantly evolving, with new advancements being made in areas such as signal processing, coil design, and materials science. One area of research that is receiving increased attention is the development of more sensitive and selective detection methods that can improve the accuracy and reliability of metal detection.

Advancements in materials science have also led to the development of new materials that can improve the performance of metal detectors. For example, researchers have developed new types of superconducting materials that can be used to make more sensitive metal detector coils.

Another area of research is the development of new types of metal detectors that can detect a wider range of metals or that are more specialized for specific applications. For example, researchers are working on developing metal detectors that can detect non-ferrous metals, such as aluminum and copper, which are currently more difficult to detect than ferrous metals such as iron and steel.

Conclusion

In conclusion, metal detector electromagnetic fields are an important part of the metal detection process. Metal detectors use electromagnetic fields to detect metal objects, and there are two main types of electromagnetic fields used in metal detectors: pulse induction and very low frequency. 

The metal detection process is affected by a number of factors, including the type of metal detector being used, the size and shape of the metal object, and the depth at which the metal object is buried. Interference and noise can negatively impact the performance of a metal detector, but there are measures that can be taken to reduce their effects. 

Metal detectors have a wide range of applications, and advancements in technology are constantly improving their accuracy and reliability.

Low Quality Cheap Metal Detectors

Metal detectors are electronic devices that use electromagnetic fields to detect metal objects buried beneath the ground. They have a variety of uses, including in archaeology, treasure hunting, security screening, and hobby metal detecting. 

The popularity of metal detecting as a hobby has grown significantly in recent years, with people of all ages and backgrounds taking up the pastime. While metal detecting can be a fun and rewarding hobby, it is important to note that not all metal detectors are created equal. 

Some metal detectors are low quality and cheap, and these models can cause more harm than good. 

In this article, we will discuss low quality cheap metal detectors and their potential risks and dangers.

What are low quality cheap metal detectors?

Low quality metal detectors are those that are made with cheaper materials, less advanced technology, and lower quality control standards than high-end metal detectors. These detectors are often priced lower than their higher quality counterparts, making them an attractive option for hobbyists on a tight budget. 

However, the old adage "you get what you pay for" is often true when it comes to metal detectors. Low quality metal detectors may lack important features, have poor accuracy, and be less reliable than higher quality models.

There are several reasons why low quality metal detectors are cheaper than high-end models. First, these detectors are often made with lower quality materials, such as plastic instead of metal. This can result in a less durable product that is more likely to break or malfunction. 

Additionally, low quality metal detectors often use less advanced technology than higher quality models. For example, they may use a single frequency to detect metal, while high-end models use multiple frequencies to better differentiate between different types of metal. 

Finally, low quality metal detectors may have less rigorous quality control standards during manufacturing, resulting in a higher likelihood of defects or malfunctions.

Problems with low quality cheap metal detectors

Low quality metal detectors can cause several problems for hobbyists. These problems can range from inaccurate and unreliable detection to a lack of useful features and accessories. In this section, we will discuss some of the most common problems with low quality metal detectors.

1. Inaccurate and unreliable detection

One of the most significant problems with low quality metal detectors is their accuracy and reliability. These detectors may be less sensitive than higher quality models, meaning they may not detect smaller or deeper objects. They may also be more likely to produce false signals, leading hobbyists on wild goose chases for non-existent treasure. This can be frustrating for hobbyists and can make the experience less enjoyable.

2. Limited detection range

Another issue with low quality metal detectors is their limited detection range. These detectors may not be able to detect metal objects beyond a certain depth, limiting their usefulness for treasure hunting or archaeological purposes. Additionally, the detection range may be affected by soil conditions, making it even more difficult to find buried objects.

3. Poor build quality and durability

Low quality metal detectors are often made with cheaper materials and lower quality standards than high-end models. This can result in a less durable product that is more likely to break or malfunction. 

The detectors may be prone to damage from moisture or rough handling, making them less reliable over time. This can lead to frustration and disappointment for hobbyists who invest in a low quality metal detector.

4. Lack of useful features

High-end metal detectors often come with a variety of features designed to make the experience more enjoyable and productive for hobbyists. These features may include adjustable sensitivity settings, multiple detection modes, and advanced discrimination capabilities. Low quality metal detectors may lack these features, making the experience less enjoyable and less productive for hobbyists.

5. Difficulty in finding replacement parts and accessories

Low quality metal detectors may be manufactured by lesser-known brands or companies that do not offer replacement parts or accessories. This can make it difficult for hobbyists to repair or upgrade their detectors when needed. Additionally, these detectors may not be compatible with accessories such as headphones or coil covers, limiting their usefulness and versatility.

Risks of using low quality cheap metal detectors

Using a low quality metal detector can come with several risks and dangers, particularly when used for archaeological or historical purposes. In this section, we will discuss some of the most significant risks of using low quality metal detectors.

1. Potential damage to historical artifacts and sites

One of the biggest risks of using a low quality metal detector is the potential damage it can cause to historical artifacts and sites. Low quality metal detectors may lack the sensitivity and discrimination capabilities needed to identify valuable or important artifacts. 

Additionally, hobbyists using these detectors may not have the knowledge or training needed to properly handle and preserve these artifacts, leading to damage or destruction.

2. Safety risks due to malfunctioning equipment

Low quality metal detectors may be more prone to malfunctions or defects, leading to safety risks for hobbyists. Malfunctioning detectors may produce false signals or fail to detect hazards such as metal pipes or wires. Additionally, low quality detectors may be more prone to electrical or mechanical failures that could pose safety risks.

3. Legal consequences of using a metal detector without proper permission or knowledge

Using a metal detector for archaeological or historical purposes without proper permission or knowledge can have legal consequences. Hobbyists using low quality metal detectors may be more likely to accidentally violate laws or regulations governing metal detecting, leading to fines, penalties, or legal trouble.

How to avoid low quality cheap metal detectors

To avoid the problems and risks associated with low quality metal detectors, it is important to do your research and invest in a quality detector. 

Some tips for avoiding low quality metal detectors include:

1. Research and reviews

Before purchasing a metal detector, research the brand and model to ensure it has good reviews and a reputation for quality. Look for reviews from hobbyists and experts in the field, and consider the features and capabilities of the detector.

2. Recommended brands and models

Stick with well-known brands and models that have a reputation for quality and reliability. Some popular brands of metal detectors include Garrett, Minelab, and Fisher.

3. Tips for buying a quality metal detector on a budget

If you are on a budget, consider purchasing a used or refurbished metal detector from a reputable seller. Look for sales or discounts on quality models, and consider purchasing accessories such as headphones or coil covers separately to save money.

Conclusion

Low quality cheap metal detectors may seem like an attractive option for hobbyists on a budget, but they can cause more harm than good. These detectors may be inaccurate, unreliable, and less durable than high-end models, leading to frustration and disappointment for hobbyists. 

Additionally, using a low quality metal detector can pose risks and dangers, including potential damage to historical artifacts and sites, safety risks due to malfunctioning equipment, and legal consequences for violating metal detecting laws and regulations. 

To avoid these problems, it is important to invest in a quality metal detector and do your research before making a purchase. By following these tips, hobbyists can enjoy a safe and enjoyable metal detecting experience.

Waterproof Metal Detectors

A metal detector is an electronic device that uses magnetic fields to detect the presence of metal objects buried underground. A metal detector can be used to locate buried artifacts, coins, or other objects that may be of value. 

Waterproof metal detectors, as the name implies, are metal detectors that are designed to be used underwater. These metal detectors are ideal for beachcombing, scuba diving, or any other activity that involves searching for objects in or near water.

While some waterproof metal detectors can be quite expensive, there are also many affordable options available on the market. 

In this article, we will explore the benefits of using a waterproof metal detector, the different types of waterproof metal detectors available, and what to consider when purchasing a cheap metal detector.

Benefits of Waterproof Metal Detectors

One of the biggest advantages of using a waterproof metal detector is the ability to search for objects in water. This makes them ideal for beachcombing, scuba diving, or any other water-based activity where objects may have been lost or buried. 

Waterproof metal detectors are also versatile and can be used on land as well as in water. In addition, they are designed to be durable and can withstand exposure to the elements.

Another benefit of waterproof metal detectors is that they can help to increase your chances of finding valuable objects. While some people may think that metal detecting is a hobby that is only pursued by treasure hunters, the reality is that many people enjoy finding lost items that may have sentimental value. 

A waterproof metal detector can help to locate lost items such as rings, watches, and other valuables that may have been lost in or near the water.

Types of Waterproof Metal Detectors

There are several types of waterproof metal detectors available on the market. Each type has its own strengths and weaknesses, and choosing the right one will depend on your specific needs and preferences.

Pulse Induction Metal Detectors

Pulse induction metal detectors are designed to work in saltwater environments, making them ideal for beachcombing or scuba diving. They work by sending a high-voltage pulse into the ground, which creates a magnetic field that is used to detect metal objects. Pulse induction metal detectors are particularly effective at detecting metal objects at greater depths.

Very Low-Frequency Metal Detectors

Very low-frequency metal detectors are designed to work on both land and in water. They use two coils – one for transmitting the signal and one for receiving it. The signal is sent into the ground, and when it comes into contact with a metal object, it creates an electromagnetic field that is picked up by the receiver coil. 

Very low-frequency metal detectors are particularly effective at detecting small, low-conductivity metals such as gold.

Multi-Frequency Metal Detectors

Multi-frequency metal detectors are designed to work on both land and in water, and they use multiple frequencies to detect metal objects. The advantage of using a multi-frequency metal detector is that it can detect a wider range of metals, including those that are less conductive. This makes them ideal for beachcombing or scuba diving, where a variety of metals may be present.

Factors to Consider when Purchasing a Cheap Metal Detector

While a cheap metal detector may not have all the features of a more expensive model, there are still several factors to consider when making your purchase.

Depth Rating

The depth rating of a metal detector refers to how deep it can detect metal objects. A cheap metal detector may not have as high of a depth rating as a more expensive model, but it should still be able to detect metal objects at a reasonable depth.

Sensitivity

The sensitivity of a metal detector refers to how well it can detect metal objects. A cheap metal detector may not be as sensitive as a more expensive model, but it should still be able to detect metal objects.

Discrimination

Discrimination refers to the ability of a metal detector to distinguish between different types of metal objects. A cheap metal detector may not have as advanced discrimination features as a more expensive model, but it should still be able to distinguish between common types of metals such as iron, aluminum, and copper.

Coil Size

The size of the coil on a metal detector can affect its sensitivity and depth detection. A larger coil will be able to detect objects at greater depths, but it may not be as sensitive as a smaller coil. A cheap metal detector may have a smaller coil, but it should still be able to detect metal objects at a reasonable depth.

Battery Life

The battery life of a metal detector is an important consideration, especially if you plan to use it for extended periods of time. A cheap metal detector may not have as long of a battery life as a more expensive model, but it should still be able to last for several hours of use.

Tips for Using a Cheap Metal Detector

Research the Area Beforehand

Before you begin using your cheap metal detector, it is important to research the area where you will be searching. Look for areas where people may have lost or buried items, such as parks, beaches, or old homesteads.

Properly Adjust the Settings

Each metal detector will have different settings for sensitivity, discrimination, and depth detection. It is important to properly adjust these settings for the specific environment and type of metal object you are searching for.

Practice with Your Detector

Before you head out on your search, it is a good idea to practice with your cheap metal detector. This will help you become more familiar with its settings and functions, and will help you to better understand how to interpret its signals.

Use Headphones

Using headphones while searching with your metal detector can help you to better hear the signals it emits. This can be especially important if you are searching in a noisy environment or if there is a lot of background noise.

Best Cheap Metal Detectors on the Market

There are many cheap metal detectors available on the market, but some of the best options include:

Bounty Hunter Tracker IV

The Bounty Hunter Tracker IV is a popular entry-level metal detector that is affordable and easy to use. It has a maximum depth detection of 8 inches and features a 6.7 kHz operating frequency.

Garrett Ace 200

The Garrett Ace 200 is another affordable option that is ideal for beginners. It features a 6.5 kHz operating frequency and has a maximum depth detection of 6 inches.

Fisher F22

The Fisher F22 is a mid-range metal detector that is still affordable for those on a budget. It has a maximum depth detection of 9 inches and features a 7.69 kHz operating frequency.

Conclusion

While a cheap metal detector may not have all the features of a more expensive model, it can still be a great tool for those who are just starting out with metal detecting. When purchasing a cheap metal detector, it is important to consider factors such as depth rating, sensitivity, discrimination, coil size, and battery life. 

By properly adjusting the settings and using headphones while searching, you can increase your chances of finding valuable objects. With options like the Bounty Hunter Tracker IV, Garrett Ace 200, and Fisher F22, you can get started with metal detecting without breaking the bank.

Importance of a Warranty for Your Metal Detector

Metal detectors are electronic devices that use electromagnetism to detect metallic objects buried in the ground or hidden on a person's body. They have a wide range of uses, from hobbyist treasure hunting to serious archaeological research, and they are also commonly used in security settings to scan people for weapons or contraband. 

With such a diverse range of applications, metal detectors are an important tool for many people, and having a warranty for them can provide added protection and peace of mind.

The purpose of this blog post is to provide a comprehensive guide to warranties for metal detectors. 

We will discuss the basics of warranties, the importance of having a warranty for your metal detector, factors to consider when choosing a warranty, understanding the fine print of a warranty, and common issues and repairs.

The Basics of Metal Detector Warranties

A warranty is a promise made by the manufacturer of a product to repair or replace the product if it is found to be defective within a certain period of time. Warranties are meant to provide the buyer with assurance that the product they are purchasing will work as intended, and to protect them from the financial burden of repairing or replacing the product themselves.

There are two main types of warranties: express warranties and implied warranties. An express warranty is a written or verbal promise made by the manufacturer that explicitly states what is covered by the warranty and for how long. An implied warranty, on the other hand, is a guarantee that the product will function as intended even if it is not explicitly stated in the warranty agreement.

Metal detector warranties can vary depending on the manufacturer and the specific product being sold. Some warranties may only cover certain parts of the metal detector, while others may cover the entire device. It is important to read the warranty carefully before purchasing a metal detector to ensure that you understand what is covered and what is not.

The Importance of a Warranty for Metal Detectors

Having a warranty for your metal detector is important for several reasons. Firstly, it provides protection for your investment. Metal detectors can be expensive, and if something goes wrong with the device, the cost of repairs or replacement can be a significant financial burden. A warranty ensures that you are not left out of pocket if something goes wrong with your metal detector.

Secondly, having a warranty can provide peace of mind when making a purchase. Knowing that the manufacturer stands behind their product and is willing to repair or replace it if something goes wrong can give you confidence in your purchase decision.

Finally, a warranty can save you money on repairs and replacements. If your metal detector breaks down and you do not have a warranty, you will be responsible for paying for any repairs or replacements yourself. With a warranty, however, these costs are covered by the manufacturer.

Factors to Consider When Choosing a Warranty

When choosing a warranty for your metal detector, there are several factors to consider. These include the length of the warranty, what is covered and what is not covered, and the reputation of the manufacturer.

The length of the warranty is an important consideration, as it determines how long you are covered for repairs and replacements. Some warranties may only cover the device for a few months, while others may provide coverage for several years. It is important to choose a warranty that provides adequate coverage for the expected lifespan of your metal detector.

What is covered by the warranty is also an important consideration. Some warranties may only cover certain parts of the device, while others may provide coverage for the entire metal detector. It is important to read the warranty carefully to ensure that you understand what is covered and what is not.

Finally, the reputation of the manufacturer is an important consideration. A warranty is only as good as the company that stands behind it, so it is important to choose a manufacturer with a reputation for quality and reliability.

Understanding the Fine Print

When purchasing a metal detector with a warranty, it is important to read and understand the fine print of the warranty. This will help you understand any limitations or exclusions, as well as the conditions for making a claim.

Limitations and exclusions are common in warranties, and can include things like damage caused by misuse or neglect, or damage caused by natural disasters. It is important to understand what is not covered by the warranty so that you can take steps to prevent damage to your metal detector.

The conditions for making a claim are also important to understand. Some warranties may require you to register your metal detector with the manufacturer, or to keep the original purchase receipt. Others may require you to follow specific procedures for making a claim, such as contacting the manufacturer before taking the device to a repair shop.

Common Issues and Repairs

Metal detectors, like any electronic device, can experience issues over time. 

Some common issues that can arise with metal detectors include:

- False signals 

This can be caused by interference from nearby electronics, or from mineralization in the ground.

- Broken or damaged coils

Coils can be damaged by being dropped or by exposure to water or other elements.

- Malfunctioning controls

The controls on a metal detector can become worn or damaged over time, making it difficult to adjust settings.

In some cases, these issues can be resolved through simple troubleshooting steps, such as adjusting the settings on the device or checking for nearby sources of interference. In other cases, however, repairs may be necessary.

If your metal detector is still under warranty, repairs or replacements should be covered by the manufacturer. If the device is not under warranty, repairs can be costly, and it may be more cost-effective to simply replace the device.

Conclusion

In conclusion, a warranty is an important consideration when purchasing a metal detector. It provides protection for your investment, peace of mind, and can save you money on repairs and replacements. When choosing a warranty, it is important to consider factors such as the length of the warranty, what is covered, and the reputation of the manufacturer. 

Understanding the fine print of the warranty, including any limitations or exclusions, is also important. By taking these factors into account, you can ensure that you have adequate protection for your metal detector, and can enjoy using it for years to come.

Types of Cheap Metal Detectors A Guide for Beginners

A metal detector is an electronic device used to detect the presence of metal objects. 

It typically consists of a handheld unit with a sensor coil that is swept over the ground or other objects to pick up signals from metal targets.

Metal detectors are commonly used for treasure hunting, coin shooting, relic hunting, beach combing, and more.

Beginners may not know what features to look for or what brands to trust, so a guide to cheap metal detectors can help them make informed decisions.

Types of Metal Detectors

A. VLF Metal Detectors

Very Low Frequency (VLF) metal detectors use two coils to create an electromagnetic field. When metal is detected, it disrupts the electromagnetic field and creates a signal.

B. PI Metal Detectors

Pulse Induction (PI) metal detectors use a single coil to transmit a pulse of electricity. When the pulse encounters metal, it creates a secondary magnetic field that is detected by the same coil.

C. Beat Frequency Oscillation (BFO) Metal Detectors

BFO metal detectors use two coils and an oscillator to create a beat frequency that changes when metal is detected.

D. Multi-Frequency Metal Detectors

Multi-frequency metal detectors can operate at multiple frequencies simultaneously or switch between frequencies to detect a wider range of metals.

Features to Consider When Buying a Cheap Metal Detector

A. Target Identification

Some metal detectors can identify the type of metal detected based on its conductivity or other properties.

B. Discrimination 

Discrimination allows the user to filter out unwanted metals or signals, such as iron or aluminum.

C. Sensitivity

Sensitivity determines how deep a metal detector can detect objects.

D. Ground Balance

Ground balance adjusts the detector's sensitivity to different types of soil, reducing false signals.

E. Depth Indicator

A depth indicator estimates how deep a metal object is buried.

Top 5 Cheap Metal Detectors for Beginners

A. Garrett ACE 200

The Garrett ACE 200 is a VLF metal detector that is lightweight and easy to use. It has a digital target ID and discrimination settings, and is priced around $200.

B. Bounty Hunter Tracker IV

The Bounty Hunter Tracker IV is a BFO metal detector with a two-tone audio target ID and adjustable sensitivity. It is priced around $100.

C. Fisher F22

The Fisher F22 is a VLF metal detector with four search modes and a weatherproof design. It is priced around $300.

D. Teknetics Eurotek Pro

The Teknetics Eurotek Pro is a VLF metal detector with a large LCD display and adjustable discrimination. It is priced around $250.

E. Nokta Makro Simplex

The Nokta Makro Simplex is a multi-frequency metal detector with a waterproof design and built-in wireless headphones. It is priced around $300.

Tips for Beginners When Using a Cheap Metal Detector

A. Research the area

Research the area you plan to search to determine what types of objects you might find.

B. Learn the basics

Learn the basics of metal detecting, including how to use your detector and how to interpret its signals.

C. Start with the basics

Start with simple targets like coins and bottle caps to practice your skills.

D. Practice regularly

The more you practice, the better you'll get at metal detecting.

Final Words

Metal detectors come in various types and features to consider when purchasing one. Cheap metal detectors can be a great option for beginners.

A beginner's first metal detector will depend on their budget, intended use, and personal preferences, but the top five cheap metal detectors listed in this article are a great place to start.

Metal detecting can be a fun and rewarding hobby, so don't be afraid to get out there and start exploring. With a little practice and the right tools, you never know what treasures you might uncover.

Choosing the Best Metal Detectors for Complete Beginners

Before we start with the main discussion, I would first like to clarify the difference between “complete beginners” from individuals who wants to give metal detecting hobby a “try”. 

When speaking of complete beginners, these are individuals who has confirmed for themselves that metal detecting is the right hobby for them. 

Thus, they want to look for the appropriate equipment that is suitable on their current level of metal detecting skill. 

As for those individuals who simply wants to give this hobby a try, any kind of cheap metal detector will work just fine for them.

If you are the type of person who wants to give metal detecting hobby a try, then I highly recommend buying a cheap metal detector ranging from $25 to $50 only. 

However, you have to make sure that you are not buying a toy designed for children to play. It is also best to choose products manufactured by the top or popular brands. 

I have seen some several cheap metal detectors from the Amazon with prices below $50 which are under the brand names of Bounty Hunter, Fisher and etc...

On the other hand, if you are the person who has finally confirmed that metal detecting is the right hobby for yourself then you might want to invest some amount of money for your equipment. 

You should go for metal detectors ranging from $300 to $600. And just like what I stated above, it is always best to choose only those that are manufactured by popular brands. 

But if you are really on a very tight budget, there are still a few and reliable metal detectors that are ranging from $100 to $200 only.

So what exactly is the best metal detector for complete beginners?

The answer into this question is dependent on the four following aspects:

1. Hunting Locations

Metal detectors are actually designed to work perfectly on certain specific locations. When speaking about locations, we are specifically referring to the components of the ground. 

Thus, there are MDs (Metal Detectors) the works well on the sand but not on the soil or vice-versa.

When it comes to soil on the ground, not all areas are equal in terms of their “mineralization”. This means that there are different areas with low and high contents of iron. 

MDs that are designed for amateurs will work just fine when used on the ground with low iron content. But, it will either have a hard time or it will not perform well on areas with high content of iron.

Ground areas with high iron contents are more commonly referred as “high mineralization” or “hot ground”. Only those skilled hobbyist with more sophisticated equipment are capable of detecting objects buried on these areas. 

So if you are a complete beginner, it is advisable to avoid such areas because it is most likely that you will end up just wasting your time. Anyway, there are some very expensive MDs that are designed for complete beginners which can penetrate through hot grounds. 

If you have the money to buy such expensive tool then you may disregard this aspect about hunting locations.

If you intend to hunt on the beach on your amateur MD, it is actually best to detect only on the dry areas. 

The reason is that, the water on the beach is salty which has similar negative feedback as the iron. Thus, you have to avoid the wet sands.

Speaking about “negative feedback”, your MD will generate a lot of false signals. When you dig any of those false signals, there is nothing that can be found because the components of the ground is the one responsible for it. 

This experience can be very disappointing that some beginners will even end up quitting on this hobby. Thus, the lesson here is to use your equipment to its appropriate ground environment.

2. Objects that you want to hunt

Before you have decided to engage into the hobby of metal detecting, you should have already set your sight on a certain target object. 

These can be old coins, gold nuggets, relics and etc… You have to know that MDs are designed for specific purposes.

Majority of MDs that are available in the market today are those that are designed to detect coins, jewelries, relics and all sorts of metallic objects buried in shallow depths. 

The depth can be from 12 inches to 1 feet.

If your intention is to find gold flakes, you will be needing a more specialized MD. These MDs operates at a very high frequencies which makes them very effective in detecting small particles of gold. 

However, the depth of penetration for these machines are very shallow ranging from 6 to 12 inches only.

When it comes to MDs with the deepest penetration, they are more commonly referred as two-box detectors, scanners and ground penetrating radars. 

These equipment are being used by treasure hunters who are seeking for large piles of treasures buried deeply under the ground. 

The penetrating range of depth that these machine can reach is incredibly from 10 meters to 30 meters. Some of the more advance machines can even detect way past more than the 30 meters limit.

3. The Range of your Budget

Your budget plays an important role when choosing the best metal detector that is right for you. We have to admit the fact that the price of a certain product is what really dictates its quality. 

So if possible, it is best to save some of your money until you can purchase one of those high-end models of MDs.

Second-hands that are high-end models are also good MDs to buy. If you are so lucky enough then you may be able to purchase the item for half of its market price value. 

Although, the risk here is that the item might have unnoticeable damage perhaps due to the previous owner’s mishandling.

4. Are you a techy individual or not?

If you are a techy individual then there is no problem for you operating any metal detectors especially those that are sophistically designed. 

But if you are not, it is best for you to choose MDs with “User-Friendly” features. MDs that are equipped with user-friendly features have built-in programs that will automatically adjust the equipment to its most desirable settings. 

Thus, all you have to do is to turn ON the power and you are good to go. When you are done, just turn it OFF. That’s how simple it is to use.

Used Metal Detectors on Craigslist – Are they Worth Buying?

Craigslist is one among the good places online to find used or cheap metal detectors. It is the current and most popular online store that allows people to directly sell their used items to interested buyers.

The most interesting part is that, since the items are considered secondhand, their prices are always lower than the brand new price of the item.

At Craigslist, there are some individuals who are in desperate need of money. They are the once that sell their items at a very low price in order to be able to rash-sale their items. 

This is good for buyers who are looking for cheap prices.

On my research, I found a guy claiming that he was able to buy a Bounty Hunter 202 for a very cheap price of only $70. The brand new price of a Bounty Hunter 202 is worth $174.99. 

Thus, he was able to buy the metal detector at a price which is way less than half the price of the brand new model. 

Then again, he was able to purchase another metal detector which is the White’s MXT for a very cheap price of only $450 (the brand new price is worth $849).

The Buy and Sellers

One of the annoying users of Craigslist are the buy and sellers. What they do is that, they have a certain amount of capital to spend on items being sold by rash sellers. 

Aside from rash sellers, there are also those sellers who simply doesn’t know the actual market value of their items or they simply doesn’t care. 

Hence, they end up putting prices according to their own personal estimation. Buy and sellers will target such items by buying them then selling them back at a higher price where they are able to make good profit. 

It is good for them but not for those actual buyers with the real intent of being in need or wanting the item.

Buy and sellers are also the main reason why it is hard to find or search for those super cheap metal detectors. 

It’s because they are constantly monitoring every new entries on the list. As a result, you are trying to compete with them in which you have a very low chance of succeeding. 

It’s because these people are often good at it since majority of them considered it as a job.

If it happens that you have found a super cheap metal detector listed on Craigslist then it is just probably luck.

The Scammers

Scammers are a lot worse than the buy and sellers it’s because they are there to steal your money. There are already an endless number of complaints from victims directed to Craigslist about being scammed. 

A cautious buyer even claimed that there is a 40 percent chance that you will contact a scammer. So if you really want to purchase a certain metal detector at Craigslist, you need to conduct your own investigation particularly about the reputation of the seller.

Quality of the Item

When it comes to used or second-hand items especially metal detectors, it will be hard for you to confirm the quality if all features are still on a good working condition or does not have any damages. 

Unless, you are already familiar with it or you are a techy individual.

Fake Ads

There are plenty of attractive ads about cheap metal detectors listed on Craigslist but when you are going to them check them up, it brings you to different products.

So is it worth buying a metal detector at Craigslist?

Despite all those risks involve, it is still worth buying a cheap metal detector at Craigslist. 

There are already numerous individuals who are well satisfied using Craigslist’s service where they were able to buy expensive metal detectors at a very low cost or affordable price. 

The key to their success is that they know how to distinguish legit sellers from the scammers.

Buying your Metal Detector at Craigslist

The risks of buying a metal detector at Craigslist can be easily avoided if you know exactly what you are doing. Thus, for those who are new to Craigslist, you may want to follow these guidelines:

1. Always Inspect the Image Ads

There are 3 ways a seller at Craigslist can post their ads which can be in the form of an image, text or both. 

Among them three, you should always prioritize ads with images of the item. The next thing to do is to investigate the posted image if it’s original or not. 

If you can find similar images on other websites, try to determine their locations. 

Once you discovered that the location of the seller varies from one another (especially from a different country) then, there is a huge chance that the ad is fake.

2. Research the Original Price of the Metal Detector

In order for you to be able to buy a super cheap metal detector at Craigslist, it is important that you need to be aware about the metal detector’s original price. 

Through this price, you are able to tell if you are buying your item at a good amount of price. 

If you noticed that the item is just slightly lower than its brand new price, it is probably being manipulated by a buy and seller. 

If this is the case then you are much better off buying the brand new model.

3. Search and Browse for Sellers at your Region

Buying a metal detector at your own region should be the first important step. So if it happens that you found an item that you are willing to buy, you can always ask the seller to meet you in person.

Meeting in person allows you to do the exchange manually which completely minimize your risks of getting scammed at a very low chance.

Moreover, finding a good used metal detector on Craigslist is like metal detecting. 

You really need to put some effort in your search and surely, you might even find something that exceeds your own expectation.

Do Gold Detectors Really Work?

Some gold hunters especially amateurs often think that there is something special about “gold detectors”. 

The fact is, there is really nothing so special about it whereas gold detectors are standard metal detectors or LRL (Long Range Locators) with some slight modifications made specifically on their “operating frequency”.

When it comes to electronic gold detectors, there are two general types of products for you to choose from which can be VLF (Very Low Frequency) or PI (Pulse Induction).

VLF

The VLF gold detectors has an operating setting of higher frequency as compared to what standard metal detectors use. 

The reason is that, gold is best detected at high operating frequencies. Thus, if you want a reliable gold detector then you should only choose units that operates at around kHz. 

At this range of frequency, the tool is quite sensitive to small gold nuggets. Detectors that are designed to find coins and relics will most likely ignore small sized gold nuggets which is a huge disappointment for gold seekers. 

It is important for you to know that it is quite interesting to detect and uncover big 1-ounce nuggets but in reality, such sizes are extremely rare that most gold nuggets that can be found are way much smaller.

The Search Coil plays the most important part of a VLF detector. So if you bought a certain unit of this kind, you should expect that the package has a set of search coils with different sizes. 

They have to be of varied sizes because it has something to do with the settings of the device’s sensitivity to gold. 

Avid metal detectorists already knew that large size search coil has deeper penetration and it can easily detect large objects but ignores the small ones. 

If you are a gold nugget hunter, using a small search coil is a much preferred choice because it increases the unit’s sensitivity to gold. 

It also has a better performance than the large search coil when detecting on areas with highly mineralized soil. 

Although, the downside of using a small search coil is less penetration and it would really take a lot of time to cover the ground.

Another huge downside of the VLF is that, it poorly performs on areas with highly mineralized ground and a lot more worse under the presence of hot rocks. 

In most cases, the equipment will go erratic giving out a lot of false feedbacks. Some latest VLF models can be fine-tuned which has something to do with the sensitivity but this hugely affects the penetration of depth which is terribly not good.

PI

Sadly, VLF is now considered by many as an old technology particularly when Pulse Induction came out to take its place. 

The main reason why most detectorists prefer PI detector is due its capability to penetrate deep buried objects with amazing accuracy even at a highly mineralized type of ground condition. 

In comparison, VLF detectors can only detect gold nuggets at a depth of around 6 to 12 inches while PI detectors can impressively detect such object up to 2 feet or even more.

Perhaps the only downside of a PI over VLF are its price and handling. Not all detectorists can afford to buy their own PI detector due to its very expensive amount of price. 

The best once are of course the newest models and they usually cost around several thousands of dollars. 

When it comes to handling, PI are heavy unlike the VLF which can be swung all day with less fatigue.

LRL

Unlike VLF and PI, LRL works in a different manner which involve vibrations. Detectorists who are using this type of tool claims that all objects has their own specific and unique vibration. 

So in order to detect gold, all they have to do is to tune their locator in the same level of vibration as the gold. 

However, most individuals often gave up on this tool due to its inaccuracy especially when used by the amateurs. 

Worst, many individuals claims that these simple type of detectors are fraud. Regardless of this issue, the few people who claim that it works for them often explains that their success comes from their deep understanding about how their tools works.

How Gold is detected by Electronic Detectors?

As already explained above, electronic detectors send frequency signals that penetrates through down the ground. 

But, there are a few more occurrences that follows through. If the signal happens to hit a target underground, it will bounce back into the antenna or search coil acting as both the transmitter and receiver. 

At this point, the signal received will be processed by the unit’s circuitry converting it into an audible or visual output.

Aside from the operating frequency signal of the electronic detector, the type of object buried under the ground also plays an important factor. 

Generally, metals are classified into two major categories known as the “non-ferrous” and the “ferrous”. 

Gold do belong under the non-ferrous type. Other types of metals on this category includes nickel, lead, zinc and silver. Ferrous, the second group are materials that often contain iron and tin. 

The main difference between these two groups is that, metals under the non-ferrous category are a much better conductor than the ferrous type.

Manufactured electronic gold detectors are now equipped with a technology known as “discriminator”. This is an improved part of the unit’s circuitry that processes the received signal classifying it as either non-ferrous or ferrous automatically. 

When the object found is classified as ferrous then the detector will simply ignore it.

Moreover, finding the best gold detector is the real challenge. If you have been researching by reading several forums and reviews, you will notice that they have different and conflicting personal opinions. 

This leaves you a tough decision. Anyway, I would not be recommending any specific model on this post but I do suggest that you should stick your choice among these top popular brands: Fisher, White’s Electronics, Garrett, Kellyco, AccurateLocators and Minelab.

As for my final words, “the real success of finding gold underground is not all about the detector but how to operate and understand what exactly it is telling you.”