10 Best Waterproof Metal Detectors 2026 in the United States

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 Minelab X-Terra PRO is designed to meet the needs of treasure hunters looking for a versatile and waterproof metal detector. With a waterproof rating allowing for submersion up to 16 feet, this model is ideal for beachcombing or treasure hunting in rivers and lakes. One of its standout features is the Pro-Switch technology, enabling users to switch frequencies for better depth detection, which can be very beneficial when searching for various types of metals.

The flexibility of three detect modes—Park, Field, and Beach—makes it suitable for different environments, whether you're in a high-trash area or looking for fine artifacts. The built-in flashlight and backlit keypad enhance usability during nighttime searching, and the option for audio control, which allows you to distinguish between different targets, adds another layer of sophistication.

Weighing in at just 2.9 lbs, this metal detector is lightweight and easy to handle, making it suitable for long search sessions without causing fatigue. Its compact design means it can be easily transported in a backpack, perfect for adventurers on the move. The Minelab X-Terra PRO is a great choice for casual and serious treasure hunters alike, particularly those who plan to search in various environments, including underwater. With solid performance and ease of use, it offers good value.

The Garrett ACE 300 Metal Detector features a waterproof search coil that allows you to use it in shallow waters, making it versatile for beach and river hunts. The detector includes useful accessories like volume control headphones, an environmental cover, and a search coil cover, which enhance its usability and protection during use.

Its adjustable length and relatively light weight (5.13 pounds) add to its ergonomic design, making it comfortable for prolonged use. The 7" x 10" search coil size allows for a good balance between depth and coverage area, suited for various terrains. The device is powered by 4 AAA batteries, providing a decent battery life of approximately 25 hours, which is convenient for extended outings.

The ACE 300 also features an IP54 rating, offering limited protection against dust and splashes, though it is not fully waterproof beyond the search coil. One drawback is that it does not include ground balance settings, which might affect performance in highly mineralized soils. Sensitivity and discrimination settings are available, helping to filter out unwanted metals and improve detection efficiency. The LCD display is user-friendly, and with 8 detection programs, it caters to both beginners and more experienced users. However, the lack of a fully waterproof design limits its use in deeper waters. The Garrett ACE 300 is a solid choice for hobbyists who need reliable performance on land and in shallow water.