1、It is easy to find the center of the stud and accurately locate hidden metal pipes, fire wires, studs and wooden frames. 2、Within a certain wall thickness, it can detect wood metal stems, metal pipes and live wires in the wall. 3、LCD screen with backlight, audio and visual indication (sound reminder and easy‑to‑read LCD display). 4、Automatic calibration of metal, voltage and stud detection, automatic shutdown function, energy saving and power saving. 5、Made of high‑quality ABS material, waterproof and wear‑resistant, not easy to damage, and long service life. 1 x Wall Scanner (Battery Not Included)1 x Instruction Condition: 100% Brand NewItem Type: Wall ScannerMaterial: ABSWeight: Approx. 185g/ 6.5ozProduct Size: Approx. 15.5 x 7 x 3cm/ 6.1 x 2.8 x 1.2in3 Detection Modes: Scan Mode, Metal Scan Mode and AC Line Scan ModeCan detect wood and metal stems, and the wall thickness is within 38mm/ 1.5inCan detect metal pipes, the wall thickness is within 76mm/3inCan detect live wires in the wall, the wall thickness is within 76mm/3inOperating Temperature: -20℃ to 50℃Power Supply: 1 x 6FF22 9V Battery (Battery Not Included)