It is a handheld wall detector with high sensitivity for home decoration, which could help you locate hiddened metal pipes, live wire, stud and metal frames accurately when you want to dig a hole to hanged a picture or install shelves.? Features: This stud finder wall scanner allows you to efficiently switch between the 3 different scan modes within minutes. Easily locate the metal, pipes, as well as the live AC wires with this stud finder.? Ergonomic Design: handheld and anti-slip body for comfortable and firm grip. Smart Beep Function: reminds you of the stud's location to find the stud center quickly. LCD with Backlight Display: LCD digital display to show the indication clearly. 3 Detecting Modes: stud scan mode, metal scan mode, AC wire scan mode. Automatic Calibration: adjusts the detection automatically for precise detection. Suitable for professional, homeowner or a DIY enthusiast. Specifications: Color: Orange + Black Material: ABS *Maximum Detection Depth: Metal Rebar: 76mm? AC Live Wire: 76mm? Wood and Metal Studs: 38mm? Operating Temperature: -20 ~ 60 degrees C Storage Temperature: -20 ~ 60 degrees C Power-Supply: 1 * 9V 6F22 Batterys(Not Included)? Package Size: Approx. 232 * 149 * 45mm / 9.1 * 5.9 * 1.8in Package Weight: Approx. 191g / 6.7oz Packing List: 1 * Wall Detector