The Velleman Mains Voltage Detector Kit makes it easy to check wires for mains voltage - even if they are installed in or behind walls. The device can also be used to trace interruptions in wiring. A flashing LED indicates whether or not voltage is present and the flash speed indicates how close the wire is. If an audible signal is also needed, space has been provided on the PCB for a buzzer to be connected
Detects mains cables
LED indication (buzzer optional)
Adjustable detection distance up to 10cm (3.9in)
Distance indication
PCB size 56 x 64mm
Manufacturer's part K7101
Requires 9V battery (not included). Please note: This is a self-assembly kit and requires soldering.