The tool 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 beams, PVC water pipes, as well as electrified objects such as live wires. Main Features: A Great Stud Finder - Advanced multi-sense sensor technology for accurate and quick locating studs wood metal & AC wires. You will find great use in this electronic stud scanner no matter you are a professional, homeowner or a DIY enthusiast. Smart Beep Function & Ergonomic Design - With an audible beep to remind you of the stud's location and position to find the stud center quickly. Handheld and anti-slip body for comfortable and firm grip, convenient to use. LCD with Backlight Display - Large LCD digital display sound signal indication, also with low battery indication. Widely Application - Multi-scanner stud finder for Wood, Metal, Deep, AC Wire. Quickly locate edges and center of wood, wall studs, metal pipes, wooden joist, rebar behind walls, floors and ceilings, also indicates the presence of live AC wire. Specifications: Material: ABS Display: LCD Maximum Detection Depth: Ferrous Metal: 110mm Non-ferrous Metals: 110mm Copper Conductors(Live): 50mm Wood: 25mm Operating Temperature: -10~50 Storage Temperature: -20~70 Humidity: 75% Altitude: 2000m Power Supply: 3 * 1.5V AAA Battery (Not Included) Item Size: Approx. 180 * 85 * 25mm / 7.1 * 3.4 * 1.0in Item Weight: Approx. 178g / 6.29oz Package Weight: Approx. 245g / 8.67oz Package Size: Approx. 20 * 9.5 * 4cm / 7.9 * 3.8 * 1.6in Package List: 1 * Wall Stud Finder 1 * Storage Bag 1 * User Manual (English)