Mainly used in the field of house decoration, office decoration, etc., to locate the steel bars, wood, wires, etc. in the wall, to achieve the purpose of safe drilling and nailing. Accurate detection, backlit screen, intuitive display, anti-fall and practical, waterproof and dustproof. Metal detection, wood detection, and wire detection are convenient and free to switch. Multiple detection modes: wood (EXACT) + electricity, wood (DEEP) + electricity, metal + electricity. Make detection easier, safer and more time-saving. Large area sensor improves accuracy. The grip part adopts soft wrapping method to increase the comfort of use. The screen displays the dynamics of power consumption, which is more intuitive. Accurately locate the center of the wood. Specifications: Main material: ABS Color: red+grey Battery: 1 * 9V battery(Not included) Use time: about 6 hours Maximum detection depth: Ferrous metal: 38mm Non-ferrous metal (copper): 20mm Copper wire (live): 38mm Wood: 20mm (EXACT) / 38mm (DEEP) Automatic shutdown time: 5 minutes Operating humidity range: Metal: 0-85%RH Wood: 0-60%RH Alternating current: 0-30%RH Operating temperature range: -10& 8451;~+50& 8451; Storage temperature range: -20& 8451;~+70& 8451; Item size: 160 * 72 * 57mm / 6.3 * 2.8 * 2.2in Item weight: 128g / 4.5ounce Package size: 165 * 77 * 62mm / 6.5 * 3.0 * 2.4in Package weight: 133g / 4.7ounce Packing List: 1 * Wall Detector 1 * Protective Bag 1 * User Manual