INKBIRD Professional Underground Underwater Metal Detector Gold Detector original Portable Metal Detector 3 Reminder Modes with LCD Signal Display

Three Alarm ModesIP68 WaterproofDeep SensingTechnology UpdatePinpointer DetailsComponents and FunctionsPower on---Press and release the button while keeping the detector away from any metal objects. You will hear a beep.Power off---Press the switch for one second to turn off the deviceLow Battery Alarm--When the battery becomes low working voltage, the detector will sound the alarm. And check the distance will be short after heating alarm 10 seconds,the turns off automatically.Widely Application