To hit an electric cable while drilling a hole in a wall can have catastrophic consequences. Likewise, drilling into gas, water pipes or central heating pipes can be extremely hazardous.
This Metal Detector SELF-ASSEMBLY electronic kit demonstarates the principles used by professional metal / cable detectors to determine whether there are metal objects hidden in a wall, ceiling or floor.
An LED indicates if a metal object is in the vicinity. If an audio signal is also desired, space has been provided on the PCB for an optional buzzer to be connected.
NOTE: This product is intended for educational purposes only. It is not a professional quality metal detector and should not be relied upon to detect cables, pipes or other hazards.Specifications