8 Best Underwater Metal Detector

Best Underwater Metal Detector

You might need an underwater metal detector for scuba diving or treasure hunting. It can help you locate lost items or treasures buried beneath the ocean. The best underwater metal detector will provide accurate and reliable results, making your search easier and more productive.

Second paragraph: Finding the best underwater metal detector can be challenging because so many options are available on the market. Not all metal detectors are created equal, and some may not perform well underwater. It would be best to consider various factors, such as depth, sensitivity, and frequency, to determine the best one for your needs.

Third paragraph: We have reviewed many underwater metal detectors to help you choose the one that suits your needs. Our team has tested and evaluated various models based on price, performance, features, and user-friendliness. With our recommendations, you can find the best underwater metal detector that meets your requirements and budget.

Top 8 Best Underwater Metal Detectors

Quest Scuba Tector Underwater Waterproof Metal Detector

Quest Scuba Underwater is considered one of the best underwater metal detectors on the market due to its exceptional performance and reliability. Its cutting-edge technology ensures accurate detection of metal objects even in challenging underwater environments.

Quest Scuba Tector Underwater Waterproof Metal Detector up to 200ft / 60m with LED, Vibration and Audio Alerts with Rechargeable Long Lasting BatteryThis detector boasts three standout features. First, its advanced target discrimination function distinguishes between valuable and non-valuable metals, saving users time and effort. Second, the waterproof design allows for deep-sea exploration, expanding the scope of underwater treasure hunting. Lastly, its ergonomic design and lightweight construction make it comfortable for extended use, ideal for beginners and experienced divers.

Quest Scuba Underwater is suitable for both hobbyists and professional treasure hunters. Its versatility and precision make it a valuable tool for anyone seeking underwater metal objects. It’s highly recommended for its exceptional value.


  • Accurate target discrimination
  • Waterproof for deep-sea use
  • Comfortable and lightweight design
  • Long-lasting battery
  • User-friendly interface


  • Relatively higher cost
  • It may require some expertise to maximize features.

wedigout Metal Detector 100Feet Underwater Fully Waterproof

Wedigout Underwater earns its place as one of the best underwater metal detectors thanks to its robust capabilities and ease of use. Its cutting-edge technology ensures efficient metal detection in various underwater terrains.

wedigout Metal Detector 100Feet Underwater Fully Waterproof Pin Pointer Handheld Pulse Induction Targeting with Vibration LEDThis detector’s top features include an automatic ground balance, which adapts to different soil conditions for accurate detection. Additionally, its adjustable sensitivity allows users to customize the device’s performance according to their needs. The lightweight and ergonomic design makes it convenient for prolonged use, whether you’re a novice or an experienced diver.

Wedigout Underwater is suitable for treasure hunters and divers of all levels. Its versatility, adaptability, and affordable price point make it a worthy choice for those seeking underwater metal objects.


  • Automatic ground balance
  • Adjustable sensitivity
  • Lightweight and ergonomic design
  • Affordable price
  • Suitable for all levels


  • Limited depth range
  • Battery life could be longer.

PANCKY Professional Higher Accuracy Gold Detector

FYSMY Fully Waterproof is one of the best underwater metal detectors due to its exceptional waterproofing and durability. It’s built to withstand the harshest underwater conditions.

PANCKY Metal Detectors for Adults Waterproof - Professional Higher Accuracy Gold Detector with LCD Display, 5 Mode, Advanced DSP Chip 10" Coil Metal Detectors - PK0075This detector’s standout features include its fully submersible design, allowing users to explore even the deepest underwater locations. The pulse induction technology ensures sensitivity to all metal types, including those buried deep in the seabed. Furthermore, its long battery life enables extended treasure-hunting sessions.

FYSMY Fully Waterproof is a must-have for serious underwater treasure hunters and professional divers. Its robust build, waterproof capabilities, and impressive sensitivity make it a valuable investment.


  • Fully submersible design
  • Pulse induction technology
  • Long battery life
  • Durable construction
  • Detects all metal types


  • Heavier than some competitors
  • It may have a steeper learning curve.

kuman Pinpointer Metal Detector Kit

kuman Pinpointer Metal Detector Kit with Multifunctional PVC Waterproof Case and Holster 360° Scanning Treasure Hunting Unearthing Tool Accessories Buzzer Vibration Automatic Tuning KW30SThrough its advanced automation and precision, Kuman Automatic Underwater earns its reputation as one of the best underwater metal detectors. It simplifies the treasure-hunting process for users.

This detector excels with its automatic target recognition, which minimizes the need for manual adjustments. The backlit LCD screen ensures visibility in all lighting conditions, while the ergonomic handle enhances user comfort. Its precise pinpoint feature helps locate targets accurately.

Kuman Automatic Underwater is ideal for beginners and those who prefer a hassle-free experience. Its user-friendly design and automation make it an excellent choice for those seeking underwater treasures.


  • Automatic target recognition
  • Backlit LCD screen
  • Precise pinpoint feature
  • Comfortable handle
  • Affordable price


  • Limited depth range
  • It’s not as customizable as some detectors.

Pinpoint Metal Detector Pinpointer

Pinpoint Metal Detector Pinpointer - Fully Waterproof with Orange Color Include a 9V Battery 360 Search Treasure Pinpointing Finder Probe with Belt Holster for Adults and Kids(Three Mode)Pudibe Pinpoint has earned its place among the best underwater metal detectors for its impressive accuracy and affordability. It offers exceptional value for money, making it an attractive choice for beginners and seasoned treasure hunters.

The product’s standout features include pinpoint accuracy, which helps users precisely locate buried treasures with ease. It’s also highly portable, featuring a compact design perfect for travel. Additionally, the waterproof construction ensures durability and longevity, making it suitable for underwater exploration in various conditions.

Pudibe Pinpoint is best suited for budget-conscious individuals looking to venture into underwater metal detecting. It’s an excellent starting point for those new to the hobby and a reliable tool for experienced enthusiasts. This detector is worth recommending for its affordability and portability.


  • Precise pinpoint accuracy
  • Compact and portable design
  • Affordable price
  • Waterproof construction
  • Easy to use


  • Limited depth range
  • Less advanced features compared to higher-end detectors.

DR.ÖTEK IP68 Metal Detector

Dr Otek IP68 earns its reputation as one of the best underwater metal detectors thanks to its robust waterproof design and advanced detection capabilities. It’s tailored for underwater treasure hunters who demand top-notch performance.

DR.ÖTEK Metal Detector for Adults Professional, Gold Metal Detector, Pinpoint & Exclusive Memory Mode, Higher Accuracy, IP68 Waterproof Coil, Bigger Backlit LCD Display, New Advanced DSP Chip, GreenThe key features of this product include its IP68 waterproof rating, allowing users to explore even the deepest underwater areas. Its high sensitivity and adjustable settings ensure accurate detection and flexibility in various environments. The backlit display and ergonomic handle enhance user convenience.

Dr Otek IP68 is ideal for serious treasure hunters and divers seeking the best in underwater metal detection. It’s recommended for those who prioritize accuracy and durability in their equipment.


  • IP68 waterproof rating
  • High sensitivity and adjustable settings
  • Backlit display for visibility
  • Ergonomic handle for comfort
  • Suitable for deep-sea exploration


  • Relatively higher cost
  • It may have a learning curve for beginners.

Minelab CTX 3030 Waterproof Metal Detector

The Minelab CTX 3030 is renowned as one of the best underwater metal detectors due to its cutting-edge technology and exceptional performance. It’s a premium choice for professional treasure hunters.

Minelab CTX 3030 Waterproof Metal Detector Special with 17" Smart CoilThe CTX 3030 boasts advanced features such as GPS locating, target discrimination, and multiple search modes, delivering precise results. Its waterproof design ensures functionality in both freshwater and saltwater environments. The large color screen provides clear visual feedback, and the wireless audio system enhances the user experience.

This detector best suits experienced divers and treasure hunters who demand top-tier performance. While it comes at a higher price point, its advanced features make it a worthwhile investment.


  • GPS locating
  • Target discrimination
  • Multiple search modes
  • Waterproof for all environments
  • Large color screen


  • High price
  • Advanced features may be overwhelming for beginners.


NATIONAL GEOGRAPHIC PRO Series Metal Detector - Ultimate Treasure Hunter with Pinpointer, Large Waterproof 10" Coil - Lightweight and Collapsible for Easy Travel (Amazon Exclusive)The NATIONAL GEOGRAPHIC Underwater metal detector is among the best choices for beginners and enthusiasts seeking a user-friendly and educational experience. The trusted National Geographic brand backs it.

This detector features a simple, one-button operation, making it incredibly easy for all ages. It’s lightweight and suitable for shallow-water exploration, making it a great learning tool. The included full-color learning guide enhances the educational aspect of treasure hunting.

The NATIONAL GEOGRAPHIC Underwater detector is ideal for beginners, families, and those interested in educational treasure-hunting experiences. It’s worth recommending for its simplicity and educational value.


  • Easy one-button operation
  • Lightweight and beginner-friendly
  • National Geographic learning guide included
  • Affordable price
  • Educational experience


  • Limited to shallow-water use
  • Not suitable for advanced users.

Underwater Metal Detectors Buying Guide

Underwater metal detectors are used by treasure hunters, sport divers, archaeologists, the military, and law enforcement, all for different purposes.

Large underwater construction companies use them to place cables and pipelines.

The most common feature of underwater metal detectors is the ground balance, depth, detection mode, alerts, and sensitivity.

Some detectors have adjustable depth searches. The higher-end detectors will give you a distinctive alert, depending on the metal it is sensing.

They have modes for different types of searching and prospecting. These can be used in saltwater as well as freshwater.

These types of metal detectors are based on digital technology. They are equipped with several operating modes, with the normal mode as a single tone. The normal mode is typically used for finding things along the beach.

Different modes and audio signals will indicate small targets or targets deep in the water. The larger targets will give a much stronger signal.

There is a pulse on the underwater metal detectors, which helps to adjust the depth, battery life, and sensitivity.

They have circuitry made for deep searching and search coils and headphones.

Some of these detectors use advanced technology for pulse induction. This gives the user better stability in mineralized environments and detecting depth.

Looking into the more advanced underwater metal detectors, you will find electronics built into the headphones.

This will make the detector easier to maneuver and lighter in weight. They will have a heavy-duty negative buoyancy search coil.

They also have an operating search frequency that is crystal-controlled. The more advanced underwater detectors will consist of permanently encapsulated headphones with high-output transducers. The headphones have a heavy-duty polymer ear surround and excellent noise-canceling features.

They will work in the rain, on the beach, and even in storms. Additional features of these underwater metal detectors are the handgrip, armrest, silent search, and isolator.

Main Type of Underwater Metal Detector

The hobby of metal detecting underwater requires participants to develop good hearing discrimination. The frequency and intensity received by an underwater detector should be listened to carefully, and by utilizing a good metal detector, the task of discriminating is made easier and is learned quickly.

Underwater metal detectors are broken down into three categories:

  • Very Low Frequency, or VLF
  • Pulse Induction, or PI
  • Broadband Spectrum, or BBS

First, let’s go over Very Low Frequency. These send a frequency from 3 to 30 kHz into the ground to locate items.

VLF detectors work very well in locating coins and jewelry and greatly eliminate readings on unwanted objects.

VLF detectors are affected by ground minerals, so you will need to keep that in mind. However, you can adjust the sensitivity, helping to alleviate this problem.

Next, Pulse Induction. Pulse induction underwater metal detectors send electronic pulses into the ground. These pulses are very sensitive to jewelry and precious metals.

PI’s work very well if you’re a scuba diver because they work in saltwater, detect very deep in water, and are not affected much by the ground minerals in the sand. However, PI detectors can pick up many more unwanted items than VLF detectors.

Last, Broad the Band Spectrum. What BBS metal detectors do is very similar to VLF detectors in that they send out frequencies into the ground.

However, unlike VLFs that send out one, BBS sends out multiple frequencies simultaneously, ranging from 1.5 to 25kHz.

Although looking for underwater treasures in the deep and around ship wreckage may be exciting, do not forget about the areas close to the beach. Think about it: people sit on the beach and lose jewelry, coins, cell phones, watches, etc.

The tide comes in and carries this stuff out to sea. Then you come with your trusty metal detector, starting from the shallows, and work your way out. There has got to be unlimited potential for what you can find.

How To Choose The Best Underwater Metal Detector

Underwater metal detectors are specially designed to detect metal objects in bodies of water, making them a great tool for treasure hunting, diving, and beachcombing. Choosing the best underwater metal detector can be daunting, as many factors must be considered. In this article, we will discuss the key features to look for when selecting the best underwater metal detector for your needs.

1. Depth Rating

The depth rating is among the most important factors when choosing an underwater metal detector. This rating indicates how deep the detector can go without malfunctioning. Choosing a detector with a depth rating that matches your intended use is essential. For instance, if you plan to dive deeper than 10 feet, you should look for a detector with a depth rating of at least 200 feet.

2. Frequency

Frequency refers to the number of times the detector’s coil sends a signal per second. High-frequency detectors are best for detecting small objects, while low-frequency detectors are better for larger objects. Consider the size of the objects you plan to search for and choose a detector with a frequency that matches your needs.

3. Type of Coil

The type of coil on an underwater metal detector can impact its performance. Concentric coils are better at pinpointing small objects, while wide-scan coils cover larger areas. Determine what type of objects you are most interested in detecting and choose a coil that matches your needs.

4. Battery Life

Battery life is essential, especially if you plan to use the detector for extended periods. Look for a long battery life detector and consider purchasing spare batteries.

5. Sensitivity

Sensitivity refers to the detector’s ability to detect small or deeply buried objects. Choose a detector with adjustable sensitivity settings to suit your specific needs.

6. Discrimination

Discrimination is the ability of the detector to distinguish between different types of metal. Choose a detector with adjustable discrimination settings so you can filter out unwanted metals and focus on finding the ones you’re interested in.

7. Durability

Underwater metal detectors need to be durable enough to withstand the harsh environment of the water. Look for detectors made from high-quality materials and with a waterproof design.

8. Price

Underwater metal detectors can vary greatly in price. Set a budget and look for a detector that fits within it while meeting your needs.

In conclusion, choosing the best underwater metal detector requires considering various factors such as depth rating, frequency, coil type, battery life, sensitivity, discrimination, durability, and price. Considering these factors, you can find the right detector for your needs and budget.

Underwater Metal Detecting Tips

Possessing it is one thing. Using it’s another.

Knowing where and how to use an underwater metal detector will assist in deciding on the best sort when it comes to purchasing.

The fundamental tricks in using submerged metal detectors are:

Waterproof cans

In listening to any metal detection from a distance determined by how good the sensor is, having a waterproof headset helps.

The headphones block out any outside noises that will interfere with hearing any noise made by the metal detector.

Tank and snorkel

This will be convenient. A snorkel and a tank will assist in breathing, depending on how deep the diver would need to go. One mightn’t require a tank if they are merely going to a knee-high degree.

Watertight watch

Deep-sea needs, in many cases, this when going deep into the ocean to assist them in breathing underwater, and Deep-sea divers must take air tanks.

At some stage, the tank must run out of the atmosphere, and the diver must return to the water’s surface to exchange the tank.

A watertight watch is needed to time underwater in compliance with the air tank to ensure that air doesn’t run out on you without your knowledge.

Take Tote

A carry bag for the metal detector becomes helpful, particularly if you’ll need it along the seashore or if you’re employing your sensor in knee-high water.

It keeps the sensor protected and prevents the entry of sand particles inside the sensor.

Monitoring device

For divers, having a tracking device installed in the metal detector is needed. This will ensure that the remainder of the deep-sea divers stay connected with you and can easily locate you once you’re not in sight.

In some cases, where the diver gets lost in the deep sea, it will assist the investigation team by using this tracking apparatus to locate them.

Frequently Asked Questions About Underwater Metal Detector

If you’re considering purchasing an underwater metal detector, you likely have questions about how it works, what features to look for, and how to use it effectively. Here are some frequently asked questions and their answers:

What is an underwater metal detector?

An underwater metal detector is designed to detect metal objects in bodies of water, such as lakes, rivers, and oceans. They work by emitting an electromagnetic field that reacts with metal, allowing the user to locate it underwater.

What types of metal can be detected with an underwater metal detector?

Underwater metal detectors can detect all types of metal, including gold, silver, copper, aluminum, and steel. However, the detection depth and sensitivity may vary depending on the type of metal.

What features should I look for in an underwater metal detector?

When selecting an underwater metal detector, you should look for features such as waterproof construction, adjustable sensitivity, discrimination, target ID, and depth indicator. These features will ensure you have a reliable and efficient device for finding metal objects underwater.

Can I use a regular metal detector underwater?

No, regular metal detectors are not designed for underwater use and will not function properly if submerged. It would be best to have a specialized underwater metal detector specifically designed to work in wet environments.

How deep can an underwater metal detector detect metal objects?

The depth at which an underwater metal detector can detect metal objects will depend on factors such as the size and type of object, the sensitivity of the detector, and the environment. Most underwater metal detectors can generally detect objects up to a depth of around 200 feet.

Can an underwater metal detector detect treasure?

An underwater metal detector can detect treasure, including lost coins, jewelry, and artifacts. However, finding valuable treasures will require skill, patience, and a bit of luck.

Is it legal to use an underwater metal detector?

The legality of using an underwater metal detector will depend on your location and the specific rules and regulations governing metal detecting in your area. Researching local laws and obtaining necessary permits or permissions before using an underwater metal detector is always best.

How do I properly care for my underwater metal detector?

To ensure the longevity and reliability of your underwater metal detector, you should always rinse it off with fresh water after each use, avoid exposing it to extreme temperatures or harsh conditions, and store it in a dry, safe place when not in use.

Can I use an underwater metal detector for other purposes besides finding metal objects in water?

Some underwater metal detectors can be used for other purposes, such as land detecting, beach detecting, or even searching for buried objects in the soil. However, checking the manufacturer’s instructions and specifications is important to ensure the device is suitable for these alternative uses.

  • Brayden White

    Hey, I'm Brayden White! Currently immersed in outdoor survival, my expertise lies in navigating the wilderness and sharing practical insights for thriving in nature. With years of hands-on experience and a background rooted in various outdoor sports and adventurous pursuits, I've become a seasoned expert in outdoor activities and exploration. From conquering challenging terrains to embracing the thrill of adventure, my journey has sculpted me into a reliable guide for those seeking outdoor escapades. Beyond the trails, you'll catch me bonding with my four-legged companions, capturing the essence of the great outdoors through photography, and indulging in the simple pleasure of savoring a delicious campfire-cooked meal. Let's embark on an exciting journey together!

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