The submersible metal detector is a handheld metal detector designed to pinpoint metal (black and non ferrous) objects during treasure hunts. Used in conjunction with ground search metal detectors to help find metal targets This detector is universal and very easy to use. Press and hold the power on for three seconds, and you can detect immediately. Both sound, light and vibration alarms are available to indicate the presence of metal objects. As the submersible probe moves closer to the metal target, the strength of the alarm increases. Submersible probes with 5.9in coils are also very effective at easily detecting even the smallest metal objects The probe has a submersible IP68 waterproof rating, which is fully capable of protecting the environment from pollution and can even be cleaned under running water or operated reliably in water depths of 3060meter The detector is designed with two keys and can be easily controlled. One key to open and close, one key to switch modes