Supply of metal detectors metal detectors to use: metal detectors www.sh-shenyi.cn 1. Turn on the power to hear the "despair" sound, indicating that the power is turned on while the green light. Such as the green light is not showing no battery or the battery connection is bad, such as continuous sound continuously or continuous vibration, indicating that the battery can not be reused, should get a new battery. 2. sound, vibration switch selection: Press the red button switch, vibration alarm mode. Release the red button switch, alarm sound way. 3. Turn on the power, it can be detected with high sensitivity, grip the handle to detect surface exploration sweep around the measured object, namely the alarm sound or vibration when metal objects, at the same time, the green light turns red; stop the probe sweep, alarm sound or vibration stop, red to green. Recommended: www.sh-shenyi.cn pipeline metal detector pin detection www.sh-shenyi.cn/products-detail.asp?cpid=24