8 Best Underwater Metal Detectors 2025 – Buying Guide

Best Underwater Metal Detectors 2025

Have you ever misplaced or dropped your valuable jewelry in the water while swimming or diving? Maybe the family’s heirloom or wedding ring?

Or you love hunting for metals, and you are willing to take an adventure underwater? Then the best underwater metal detector will help you in finding your valuables.

Underwater metal detectors usually are undertaken using two types of technology. The very-low-frequency metal detectors are types of sensors that operate within the range of 3 to 30 kHz frequency.

These devices are also sensitive to various precious metals. They can recognize the proper objects from the bad ones. They also have the functionality of adjusting their sensitivity.

Another type of metal detector is pulse induction. They are good at transmitting electronic pulses into the ground for metal seeking. They are compassionate and perform well. Underwater metal detectors are generally waterproof. These detectors have waterproof search coils and are suitable for detecting treasure in shallow water. Some models are also used only on freshwater, while others are on both fresh and salt waters.

Top 8 Best Underwater Metal Detectors 2025 – Reviews and Comparisons:

Picture	Name	Description		Price
	Tesoro Sand Shark Metal Detector	Brand: Tesoro Dimension: 21.1 x 11.5 x 4.7 Inches Weight: 6.35 Pounds Search Coil: 10.5″ Coil		Check Price
	Treasure Cove Metal Detector	Brand: Treasure Cove Dimension: 9 x 6 x 22 Inches Weight: 1.5 Pounds Search Coil: 7.5″ Coil		Check Price
	URCERI GC- 1069 Metal Detector	Brand: URCERI Dimension: 21.9 x 9.9 x 6.3 Inches Weight: 6.25Pounds Color: GC-1069		Check Price
	Materk Underground Metal Detector	Brand: Meterk Dimension: 22.4 x 10.4 x 5.5 Inches Weight: 3.3 Pounds Detection Depth: 160mm (Test Coin: US Φ 25) Search Coil: 7.5″ coil		Check Price
	Intey Metal Detector	Brand: INTEY Dimension: 5.5 x 8.5 x 22.5 Inches Weight: 3.85 Pounds Color: Ground detector		Check Price
	Garrett 1140900 Metal Detector	Brand: Garrett Dimension: 9 x 2.5 x 2.5 Inches Weight: 9 Ounces Color: Orange		Check Price
	American Hawks Explorer Metal Detector	Brand: American Hawks Dimension: 28 x 5 x 9 Inches Weight: 5 Pounds Frequency: 5KHz ~ 6.5KHz		Check Price
	Kuman Pin Pointer water-resistant metal detector	Brand: Kuman Dimension: 9 x 2.5 x 2 Inches Weight: 3.2 Ounces Color: Pin pointer Water Resistant Metal Detectors		Check Price

How to Metal Detect Underwater?

Underwater metal hunting can be more challenging compared to metal searching on the land. This will automatically require you to invest in waterproof metal detectors. But with the best underwater metal detector, your search will be easy.

Gathering equipment

As a metal seeker, you need some tools for your mission to be successful. These tools will help you directly in finding metals and valuables that may have dropped inside the water.

The scoop is one of the tools that will help you uncover your valuables effortlessly when searching for your metals. The scoop will help in scooping sand for better search. They usually are of different sizes like short, medium, and long handle scoops

8You also need some diving gear if necessary and protective goggles. The underwater metal detector itself should not be forgotten. Also, ensure you have your detector ready for the mission.

Planning

1st Step

Start the underwater metal search by planning your trip well. Summer is an excellent time for detecting metals inside the water. This is when the water warms, making your body stay in the water for a long time as you search.

Also, it is not wrong to do your metal search in winter. Winter can also work well for some people. After planning at the time, you should also plan for the place you will do your metal search.

Choose the most visited area for a positive result. Places that are mostly visited will automatically increase the odds of finding your targets. Sites such as swimming holes, piers, beach areas, and docks where people jump or swim can work best.

2nd Step

Ensure that you know well your metal detector. Know all the device settings and ensure that you know all the basic features and their respective function. For example, features such as discrimination allow you to choose your targets correctly.

Other features include; sensitivity, which allows you to choose how effective and precise your metal detector will be. It also enables you to hove in. The detection mode will enable you to filter out objects. The ground balance helps in accounting for common minerals.

3rd Step

When doing an underwater metal search, it is important to follow an imaginary line and follow it consistently. You can follow it and move within 5 to 6 feet of swipes. Ensure that you keep an eye out for ocean floor potholes.

4th Step

Cover the underwater grounds by effectively sweeping your underwater water detector as you dive in the water. As you dive, ensure you keep the detector about four or five feet deep. As you plummet, sweep it back and forth in the half-circle.

Move your detector in small circles so that you can know the precise location of the object after the beep. Use the detector slowly to identify the exact spot where it beeped from. You can also increase the sensitivity of the detector as you move closer.

5th Step

Knowing the water current is also important more especially if you want a positive result quickly. This is because it helps you show the direction of sand hence giving you ultimate insight into the location where your metal is stuck.

Our Picks of 8 Best Underwater Metal Detectors 2025:

1. Tesoro Sand Shark Metal Detector

Tesoro sand shark metal detector is the first metal detector with a pulse induction controlled with a microprocessor. Unlike every other metal detector in the market, they are designed to work in saltwater without sending false signals whatsoever. This is due to their unique single loop coils.

It has two operating modes; normal and VCO. Normal mode is used for lengthy searches and has a single tone, while the latter has varying tones depending on how close the target is. The metal detector has a lifetime warranty guaranteeing quality.

The standard search coil of this underwater metal detector is waterproof. It is well built and offers maximum operation. It enables high sensitivity hence the perfect metal search. This is a detector that is cost-effective and offers value for your money.

Features of treasure cove metal detector:

2. Treasure Cove Metal Detector

Treasure cove metal detector is a metal detector with myriad outstanding features. It is designed with the expertise to guarantee comfort and lessen fatigue when searching for metals.

The metal detector has an LCD. This feature allows you to know the detected metal’s details, composition, and even depth. This is complemented by adjustable sensitivity, where you can ignore some metals during the search.

This ensures that you will never dig with excitement only to find a metal you are not interested in. It also saves your time that could have been used approximating and guessing the location.

It has a waterproof search coil and stem, which allows you to find metals in shallow waters. This means that you are not limited to dry sandy areas.

Its auto-ground balance feature blocks false signals that may result from salty underground water and minerals. It is lightweight and has an adjustable stem which adds up to its portability and ease of operation.

Features of treasure cove metal detector:

3. URCERI GC-1069 Metal Detector

This is a metal detector with easy-to-use interphase designed for comfort, convenience, and minimizing exhaustion. It has two search modes, a feature that allows you to search for a specific metal and ignore the rest or the reverse.

The modes are DISC and ALL METAL.  The search coil is standard, complements its sensitivity, and is waterproof, allowing you to find metals in shallow waters.

This high-performing metal detector has a LED screen that is very informative. It displays content as the depth of the metal, sensitivity, and low battery indicator.

It is very accurate and has audio feedback, ensuring that you will certainly not miss a metal. Also, it is straightforward to use with easy controls for a beginner and outstanding features for a professional as in;

Features

4. Materk Underground Metal Detector

Essentially, this is a treasure searcher designed with proficiency to ensure that you get the desired metal more accurately, unfailingly, and without difficulty.

The lightweight metal detector is easy to transport and reliable even in harsh ground conditions. This makes it reliable on all types of soils while maintains its accuracy.

It has two operation modes, discrimination mode and ground balance mode. Discrimination mode allows you to search for only specific metals while ignoring the rest.

Ground balance is a paramount feature that blocks false signals to prevent it from detecting mineral salts and underground salty water. The cable in the Materk underground metal detector is hidden to make it more organized.

Features of Materk Underground Metal Detector:

5. Intey Metal Detector

Intey metal detector is a metal detector that is widely known for its very high accuracy. It gives the exact location of the detected metal and is very sensitive to a depth as deep as 0.5 feet.

It is susceptible to all metals as long as this is not limited in the settings. This implies that the detector’s sensitivity can be adjusted so that it discriminates against some metals. This ensures that you get the exact metal you are after.

The very accurate detector also has a standard search coil which adds to its sensitivity. The search coil is also waterproof, making sure that you are not limited to dry areas.

The stem of the intey detector is adjustable and also waterproof. This makes it suitable for persons of all heights. It has a Light Emitting Diode (LED) light that alerts you when a treasure is detected.

This is also complemented by audio feedback, which ensures that you will undoubtedly not miss a signal. Moreover, it has a 24-month warranty which is absolutely a mark of quality.

Features of Intey Metal Detector:

6. Garrett 1140900 Metal Detector

This is a metal detector that is ideal for searching for treasure underwater. It is fully waterproof up to 3.048 m. It also has a very bright color to ensure that it is well visible underwater.

Garrett 1140900 has three sensitivity levels. It is susceptible to ensure that it detects smaller bits. A 3600 side scan blade complements this. This makes sure that you will not miss any metal.

The metal detector is also very responsive and has buttons that are easy to use and allow you to be precise in the detection area.

To ensure that you do not miss a signal, the detector is fitted with a LED light that is very expedient for low-light uses. The lightweight detector (1.36 kg) also comes with a 9V battery.

Features of Garrett 1140900 Metal Detector:

7. American Hawks Explorer Metal Detector

American hawks explorer metal detector is a metal detector that has been designed with the skill to ensure that treasure hunting is easy and interesting for you. Indeed, hunting metals have never been easier!

The versatile metal detector is ergonomic with an adjustable arm which makes it comfortable for all heights. It is also lightweight and compact, which adds to its portability.

This metal detector is made to ensure that you will, without a doubt, not miss a metal. Besides the signal, it has audio feedback too with adjustable volume and optional headphones. It also has a standard search coil which increases its sensitivity.

The sensitivity of this detector can be adjusted with knobs very easily and does not require expertise. Here, you get to know the depth and the size of the treasure. The search coil is waterproof, which allows you to search for the metal in shallow waters.

The auto ground feature blocks false signals from underground salty water and mineral salts. This means that every signal means the desired metal. The search modes allow for discrimination of metals where you can choose to ignore some metals.

In an actual sense, it’s a complete detecting tool with a carry bag, padded headphones, two 9V batteries, and a 10-year warranty that warranties excellence.

Features of American Hawks Explorer Metal Detector:

8. Kuman Pin Pointer Water Resistant Metal Detector

Essentially, this susceptible, easy-to-use metal detector makes metal searching more comfortable and convenient. It has exclusive parameters that make it stand out and the best in the market.

Kuman pinpointer water-resistant metal detector is very sensitive. It works on very harsh ground conditions accurately and with speed. It also responds fast to the one-touch button, narrowing the detection field or for more detailed pinpointing.

The lightweight, compact metal detector is the most portable metal detector (90.719 g). It is also partially waterproof, which allows you to search for treasures in shallow waters. However, one should be cautious not to immerse the buttons and the LED screen in water.

This metal detector is also fitted with audio devices, making it hard to miss a signal. This is backed up by different Light Emitting Diode indicators light and a vibrating alert.

Features of Kuman pinpointer water-resistant metal detector:

Buying Guide – How to Choose the Best Underwater Metal detector?

1. Things to know

Basically to buy the best underwater metal detector may be a challenge for many people. But with proper guidelines, it is simple. There are many metal detectors in the market, and they sell at different budgets.

It is important to know that these metal detectors perform differently and have different levels of sensing metals. Mostly those metals that sell at high cost tend to give the best services.

Underwater metal detectors mostly have prices that range from $100 to $1000. Some of the most important things you need to know before buying an underwater metal detector include the following;

2. Search for the Best

Search for the best brand of metal detectors. Ensure that you buy only the top renowned brands. It is good to buy a metal detector that works with your budget. You can start with something cheap.

The best metal detector is the one with waterproof abilities. Search for the one with the coil, control box, and all other components that are waterproof. Ensure that this detector is built to perform in the desired depths. Go for the one that works deepest.

The ergonomics and weight of the detector is an essential feature to consider. Since you will be moving inside water, it is advisable to go for something lightweight. Something that can fit comfortably in tight corners.

Working frequency is the most crucial factor to consider before purchasing a metal detector. Choose the machine considering where you will take your underwater search. Get the PI or the multiple frequencies if you are going to salt beaches.

You can also search for metal detectors with removable batteries and ask for an extra battery pack. This will help you in your metal searching missions since your device will not run low in power.

3. Make the budget

As indicated above, it is important to purchase an underwater metal detector that fits your budget. Ensure that you choose the machine with features you want and the one that sells at low prices.

There are a lot of detectors in the market that sells lowly but performs perfectly. Choose the one that gives you maximum value for your money. For beginners, it is advisable to start with cheap detectors.

4. Purchase

After going through various reviews and features, it’s time to purchase your product of choice. The best place you can buy this product is mostly on Amazon. Go online and make your order.

5. Enjoy the use

Now you have the machine, and you can enjoy the use. Set your device well and plan your search mission. The product is good and will offer you excellent services. It is portable and easy to use.

It is also waterproof and can serve you for a long time. Look for places where many people gather or enjoy themselves. This is where your search mission will most likely give you a positive result.

Final Verdict

Underwater metal detectors are generally devices meant for searching metals underwater. These detectors are usually of different brands. These brands are also equipped with features that are slightly different.

The majority of these detectors also can move from beaches, wet conditions, or even land. They can also be immersed to some depths of around 200 ft easily. They are lightweight and can maneuver easily in any situation.

Using these waterproof metal detectors helps to find valuables and treasure in the water with less difficulty. With proper guidelines as provided above, you will get the best out of them.

They perform perfectly, and getting the best out of the many is not an easy task. But following the above buying guide, you will absolutely get what you desire.