Locating Depth: 60 mm non ferrous metal80 mm Ferrous Metal50 mm live cables20 mm wood The device locates ferrous and non-ferrous metals, wooden beams and AC voltage electrical wires in walls, ceilings and floors. You can be the center points/lines and depths of the search objects in the materials to be examined. These materials can be made of concrete, brick with ceramic tiles or wood. By a three-colored LED display and the audio signal allows the device offers a maximum of security in the detection. The power is supplied by a 9V block battery (not included).This text is machine translated.