UNI-T Stud Finder Wall Scanner Stud Detector Digital Wall Detector Metal Detector AC Wire Detector 2-inch LCD Digital Wood Center Finding Metal Studs and AC Cable Live Wire Scanner Warning Detection The wall scanner enables you to detect electric wire, metal object, wooden beams accurately, which is a great tool for interior finish, renovation, furniture installation, flooring, pipe installation, and building construction. Features: Professional Wall Stud Finder: mainly used to detect wood stud under gypsum board, metal (water pipe, steel bar, copper pipe), live wire. Multiple Detecting Modes: including stud, thick, metal, and AC wire detecting. Sound and Light Alarm: when detecting various materials under the different modes, LED indicator will flash the corresponding color, and buzzer alarms. User-friendly Design: Ergonomic handheld and anti-slip body for comfortable and firm grip, 1 meter drop-proof is safe e. Adopts Advanced Sensor Technology: with high accuracy performance and quickly locate metals. Digital Stud Sensor: 2-inch large LCD digital display with backlight, also with battery indication. Note: Wall Material that Can be Scanned: plasterboard, plywood, hardwood flooring, wood coating wall, and wallpaper. Wall Material that Can Not be Scanned: carpeting, ceramic tile(only metal), metal wall, cement wall. Specifications: Material: ABS Maximum Detection Depth:   Stud Scan Mode(Wood): 19mm   Thick Scan Mode(Wood): 28.5mm   AC Electric Wire: 50mm   Metal Scan Mode: 76mm (ferrous metals: 76mm, non-ferrous metals(copper): 38mm) Detect Principle: Electro-magnetic induction Detects: Wooden beam, metal object, electric wire Notifications: LED/buzzer Working Temperature: -7~49℃ (19~120℉) Storage Temperature: -20~66℃ (-4~150℉) Power Supply: 1 * 9V 6F22 battery (NOT included) Item Size: 186 * 70 * 44mm / 7.32 * 2.76 * 1.73in Item Weight: 201g / 7.11oz Package Weight: 301g / 10.61oz Package Size: 27 * 10.5 * 6.5cm / 10.63 * 4.13 * 2.56in Packing List: 1 * Wall Stud Finder