Metal Detector Kit DC 3V-5V 60mm Non-contact Metal Detector
Working Voltage: DC3-5V,
Detecting Distance: Less than 60mm
Metal detector is a high performance metal sensor designed for security. It can also apply to game entertainment, car detection, equipment position detection, metal proximity switch, traffic statistics, etc..
Buzzer start to ring and the red light indicator is on when the metal is close to the metal detector.