10 bestUnderwater Metal Detectorof December 2025
112M consumers helped this year.
1
Minelab Equinox 800 Multi-IQ Underwater Metal Detector & Pro-Find 15 Pinpointer
Minelab
9.8
9% off
2
Garrett 1140900 Pro-Pointer at Waterproof Pinpointing Metal Detector, Orange
Garrett
9.6
3
Garrett Sea Hunter Mark II Series Ground Search/Underwater Metal Detector
Garrett
9.4
16% off
4
SuperEye Underwater Metal Detector for Adult: Precise Sensitivity 8.6" Coil, Small Object Filter, Visual LED & Alarm with Headphone | IP68 Full Waterproof Upto 130 ft for Scuba Diving Treasure Hunting
SuperEye
9.1
5
Minelab Equinox 600 Multi-IQ Underwater Metal Detector & Pro-Find 20 Pinpointer
Minelab
8.8
Other
750 Underwater Metal Detector with Vibration and LCD Detection Indicator - PI Waterproof Probe Pulse Induction Technology Metal Detector Handheld Targeting Pinpointer by SHUOGOU
Scuba Tector Underwater Metal Detector Stealth Black Color 200ft Waterproof Saltwater River Treasure Hunting high Sensitivity Easy to use USB Rechargeable (Black)
wedigout Metal Detector 100Feet Underwater Fully Waterproof Pin Pointer Handheld Pulse Induction Targeting with Vibration LED
Nokta Metal Detector for Adults – 1st Swing Waterproof Metal Detector – with LCD Display and Pinpoint Function - Lightweight - Includes a Digger
6
Nokta PulseDive Underwater Metal Detector & Pinpointer 2-in-1 Set with 4" Coil, 3 kHz Pulse Induction Frequency
Nokta DETECTION TECHNOLOGIES
8.5
7
Minelab PRO-FIND 40 Waterproof Pinpointer Metal Detector for Experts with Tone ID & Adjustable Sensitivity (Built-in Flashlight, Holster & Lanyard Included)
Minelab
8.3
8
PulseDive Nokta Scuba Detector and Pointer 2 in 1 Set - Black
KEXMY
8.0
9
Quest X10 Metal Detector with high Performance 9x5 Blade TurboD Double D Waterproof Coil only 970g Super Lightweight Built-in USB Rechargeable Battery Loud Speaker LED Backlit and Flashlight
Quest Metal Detectors
7.7
10
SUFFLA Professional Metal Detector for Adults - Gold Finder Waterproof Lightweight Metal Detecting with 10" Search Coil and High Accuracy Pinpoint for Juniors Beginners
SUFFLA
7.4
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A Guide to Selecting the Best Underwater Metal Detector
Choosing an underwater metal detector can be exciting, especially if you love exploring beaches, rivers, or even diving for hidden treasures. The right detector will help you find coins, jewelry, and other metal objects beneath the water’s surface. To make the best choice, it’s important to understand the key features that affect how well a detector works underwater and how comfortable it will be for you to use. Think about where you plan to search, how deep you want to go, and what kind of objects you hope to find. By focusing on the main specifications, you can match a detector to your needs and enjoy your underwater adventures.
Waterproof Rating
The waterproof rating tells you how deep the detector can safely be submerged without damage. This is crucial because not all detectors are made for full underwater use—some are only splash-proof or suitable for shallow wading. Waterproof ratings are usually given in meters or feet. Shallow water detectors are safe for up to about 3 meters (10 feet), which is fine for beach or riverbank use. Mid-range models can go down to 10 meters (30 feet), suitable for snorkeling. High-end detectors can handle depths of 60 meters (200 feet) or more, which is necessary for scuba diving. To pick the right one, think about how deep you plan to search. If you’re just wading or snorkeling, a lower rating is fine. For diving, you’ll need a detector with a much higher waterproof rating.
Detection Technology (VLF vs. PI)
Underwater metal detectors use different technologies to find metal: Very Low Frequency (VLF) and Pulse Induction (PI). VLF detectors are sensitive to small objects and can distinguish between types of metals, but they can be affected by mineralized sand or saltwater, which may cause false signals. PI detectors are better at ignoring mineralization and work well in saltwater, but they usually can’t tell the difference between types of metals. If you plan to search in freshwater or want to find small items like coins or jewelry, a VLF detector might be best. If you’re searching in saltwater or highly mineralized areas, or you want to go deeper, a PI detector is a better choice.
Operating Frequency
Operating frequency refers to how many times per second the detector sends signals into the ground or water. Lower frequencies (around 3-8 kHz) are better for finding larger, deeper objects, while higher frequencies (10-20 kHz or more) are more sensitive to small, shallow items like tiny jewelry. Some detectors offer adjustable frequencies, letting you switch based on what you’re searching for. If you’re after small, shallow targets, look for a higher frequency. For larger, deeper objects, a lower frequency is better. Adjustable frequency is useful if you want flexibility.
Search Coil Size and Shape
The search coil is the round or oval part at the end of the detector that you sweep over the ground or underwater surface. Coil size affects how deep the detector can search and how much area it covers. Larger coils can search deeper and cover more ground, but they can be harder to maneuver in tight spaces. Smaller coils are better for pinpointing small objects and working in rocky or cluttered areas. Coil shape also matters—round coils are common and good for general use, while elliptical coils can help you search in narrow spaces. Choose a coil size and shape based on where you’ll be searching and what you hope to find.
Weight and Ergonomics
Weight and ergonomics refer to how heavy the detector is and how comfortable it is to hold and use, especially for long periods. Underwater detectors can be heavier than land models because they need to be waterproof and durable. Lighter detectors are easier to handle, especially if you’ll be using them for hours or carrying them while swimming or diving. Look for a detector with a comfortable grip and adjustable shaft length so you can use it without straining your arm or wrist. If you plan to dive, make sure the detector is easy to maneuver underwater.
Audio and Visual Target Identification
Audio and visual target identification features help you understand what kind of metal you’ve found before you dig. Some detectors use different tones or display information on a screen to indicate whether the target is likely to be iron, gold, or another metal. This can save you time and effort by helping you ignore unwanted items. If you want to focus on finding valuable objects and avoid digging up trash, look for a detector with clear target identification features. If you’re happy to dig everything, this may be less important.
Battery Life and Power Source
Battery life determines how long you can use the detector before needing to recharge or replace the batteries. Underwater detectors often use rechargeable batteries or standard replaceable ones. Longer battery life is important if you plan to spend a lot of time searching or if you’ll be far from a power source. Check how long the detector can run on a full charge and whether it’s easy to swap batteries if needed. Choose a model with enough battery life for your typical search sessions.
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