10 Best Waterproof Metal Detectors 2025 in the United States

The MINELAB Equinox 800 is a versatile waterproof metal detector designed for both beginners and experienced treasure hunters. One of its standout features is the simultaneous multi-frequency technology, which allows it to detect various types of metals effectively, making it suitable for different environments, whether on land or underwater. With a depth rating of up to 10 feet, this detector is perfect for beachcombing or exploring rivers and lakes.

The device offers four detect modes tailored for specific needs—Park, Field, Beach, and Gold modes. This provides users with flexibility depending on where they are searching. The accurate target ID system helps distinguish between valuable items and trash, enhancing the user's efficiency during searches. Plus, the inclusion of wireless headphones adds to the convenience, allowing for high-speed audio feedback.

In terms of ergonomics, the Equinox 800 is lightweight, making it easy to use for extended periods without discomfort. Its adjustable length can accommodate users of different heights, which is a thoughtful design element. The battery life, estimated at around 12 hours, is decent, though some users may prefer longer sessions without the need for frequent recharging.

On the downside, the price point may be higher than entry-level models, which might deter newcomers. Additionally, while the device is user-friendly, those new to metal detecting may need to spend some time familiarizing themselves with its features and settings to maximize its potential. The product’s weight, though manageable, is slightly on the heavier side compared to comparable models, which could be a consideration for those who prefer a lighter option.

The MINELAB Equinox 800 stands out for its advanced features and waterproof capabilities, making it a strong choice for enthusiasts who want reliability and performance in various detecting scenarios.

The MINELAB MANTICORE Metal Detector Professional Bundle is designed to appeal to serious treasure hunters looking for a reliable and powerful waterproof option. One of its standout features is its advanced technology, which offers 50% more power than many competing models. This could significantly enhance your ability to detect targets quickly and efficiently, even in challenging environments. The simultaneous multi-frequency capability is particularly beneficial for diverse soil conditions and types of metal detection.

The PRO-FIND 40 pinpointer included in the bundle is also a strong asset. Its waterproof design and Detector Interference Free technology help in accurately locating treasures without the frustration of signal interference, which can be common in metal detecting.

When it comes to comfort and usability, the MANTICORE boasts an ergonomic design that makes it manageable to use over extended periods, although its weight could be a concern for some users who may prefer a lighter device. The 11” double D coil is well-suited for both depth and sensitivity, making it effective in various detection scenarios. Battery life is adequate but could be a limitation for those planning extended outings, requiring the user to carry extra batteries. Additionally, while the included carry bag is practical and protective, it might not be large enough for additional accessories that serious hobbyists often wish to bring along.

The SUNPOW Metal Detector for Adults OTMD09 is a solid choice for those interested in waterproof metal detection, especially in environments like beaches and shallow waters thanks to its IP68-rated waterproof coil. With an impressive detection depth of 11 inches and a 10-inch search coil, it covers a wide area, making it efficient for treasure hunting. The device is equipped with a strong anti-interference chip, providing automatic ground balance to reduce disturbances, which enhances accuracy and reliability in varied terrains. This feature is particularly useful for those who might face challenging conditions during hunts.

The detector includes five different modes, including ALL METAL and PINPOINT, allowing users to target seven types of metals, while the memory function facilitates ease of use by saving preferred settings. Beginners will appreciate the intuitive LCD display with large backlit data, making operation straightforward. Weighing in at 3.63 pounds, it's relatively lightweight, and its ergonomic design with adjustable rods caters to both adults and children, ensuring a comfortable user experience. However, its control box is not waterproof, which requires caution around water.

Additionally, the SUNPOW includes a lifetime warranty, offering peace of mind with quality assurance. Some users may find the operating frequency of 7 KHz less effective for certain types of metal detection compared to higher frequencies. It is a commendable option for casual and hobbyist users.