Applicable to wooden/concrete wall, 3-in-1 Stud/Voltage / Metal Detector with Easy-to-Read LCD Screen

Accurately locates hidden metal pipes, live wires, stud and wooden frames Easy to read LCD screen Detects metal up to 70mm depth Detects voltage up to 60mm depth Detects wood up to20mm Auto calibration metal, voltage, stud detection Audio and visual indication Operated by one piece of 9V battery (battery not included)