Puncturing 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. With this handy metal detector it can now be determined beforehand whether there are metal objects to be found in a wall, ceiling or floor. An simple LED indicates if a metal object is in the vicinity.metal detecting distance adjustable: up to 3.15", power supply: 9V battery (not incl.) , LED indication, 12VDC-buzzer connection possible (buzzer not included)
dimensions: 2.2" x 2.5.