Hand Held Metal Detector

Hand Held Metal Detector Features: Size : 35 x 14 x 4cmSound alert LED indicatorLow power consumption and low battery indicationHandheld and Light weightPated voltage: DC 9VPower:300mWOperating temperature: 0ºC to 40ºCLoosen the screw of the battery door and install a 9V battery( 9V battery not include ).Hold the arm pole and change the three-position switch from "off" to "alarm". The green LED power light will be on and a short beep can be heard.Use a coin to test the metal detector function. When the coin passes the detector an alarm or vibration will occur.Sensitivity tuning methods: adjust the sensitivity in the "sensitivity tuning hole" on the right of the metal detector with a small screwdriver. Adjust clockwise to increase the sensitivity and anticlockwise to reduce the sensitivity.Low voltage alarm: when you turn on the power switch of the metal detector but hear continuous alarm, it means the battery voltage is low and should be replaced.It can be used for public security in airports, railway stations, docks, prisons, customs and frontier defense as well as quality control of medicine, food and other commodities.