This metal detector is waterproof up to 60M/200FT, it can be immersed in 60M/200FT water for 30 minutes, and the best water depth is within 15 meters for long-time working The oversized 10 x 4 inch coil allows the device to perform at its best underwater and on land With a foldable coil Fixture, ble handle, and the powerful pulse induction system, it is the ultimate detector for beach or underwater.It is the upgraded version of the dive detector Suitable for beach and land, comes with pole adapter Folding design, more convenient to carry, the price is favorable, only half of the price of similar products, non-professionals can also buy without putting pressure on the wallet