Adjustable High Accuracy Weatherproof Metal Detector SetAdjustable High Accuracy Weatherproof Metal Detector Set Locate precious metals or lost jewelry with the help of our ultra sensitive metal detector. Our underwater metal detector was designed to help you uncover metals that are buried deep into soil, sand, or shallow bodies of water. Unlike traditional metal detectors, the waterproof metal detector has an oversized search coil that provides a wider detection range. It also has eight sensitivity levels