To come up against 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 a handy metal detector it can now be determined beforehand whether there are metal objects to be found in a wall, ceiling or floor. An LED indicates if a metal object is in the vicinity.Features avoid disasters when drilling holes in walls locate pipes, cables, metal studs, … great project for novices your own unique application push button operationtehnički podaci:-Velleman K7102. Širina: 5,6 cm, Dubina: 6,4 cm