Product Description:WS-120 is a handhold wall scanner for quick detection of magnetic metals in wall, rooftop and floor, such as reinforcing steels, iron pipes, and nonmagnetic metals such as aluminum pipes, copper pipes, and nonmetal materials such as , PVC water pipes, as as electrified objects as live wires.Features:Perfect for detecting metal, wood and AC cable in the wall.Indicates the detecting results by Light and Beepmaterial: plasticColor as shownDetect AC cable with voltage higher than 110V, 50-60Hz, the sensibility may be weak when the cable is grounded.High accuracy, with a maximum detection depth of 110mm.Specifications:Detect Ferrous metal and Non-ferrous metal AC live wires, woodMaximum scanning depth: 110mmFerrous metals: 110mmNon-ferrous metals (copper pipe): 110mmCopper conductors (live): 50mmWood & PVC Tube : 25mmAutomatic switch-off after : 5minOperating Condition :Temperature: -10 to 50Humidity: Less than 75%Altitude: Less than 2000MStorage temperature: -20 to 70General Information:Battery type: 3 x 1.5V, AAA alkaline (not included)Dimensions: 185 x 85 x 33mmWeight: 180gPackage Contents:1 x Wall DetectorOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.