Fully waterproof to 20 feet with orange color for added visibility underwater. Maximum Sensitivity for improved detection of nuggets and other small targets. Choose from three Sensitivity levels. Fast Retune: Quick button press instantly tunes out environment or narrows detection field for precise pinpointing of larger targets. Shrink detection field to precisely pinpoint large targets Tune out mineralized ground wet beach sand etc. The Pro-Pointer AT provides all terrain versatility for locating and pinpointing metallic targets. It is environmentally protected from the elements and is fully submersible to a maximum depth of 20 feet or 6 meters.