Name: 5 In 1 Wall Stud Detector Colour: Dark Silver, Orange Battery: 9V battery 6F22 (without battery) Product Size: 152*62*28MM Box Packing Size: 160*78*45mm Purpose: Quickly locate wood, metal and AC wires hidden in the walls, floors and ceilings of houses. It can work on slats, wallpaper, wooden floors, sound-proof ceilings, spray-painted walls and other places. Avoid danger when installing TVs, cabinets, garage racks, etc. Multifunction wall scanner HW430 features five scanning modes: 1. Stud in. scan: Locates the center and edges of wood and metal studs up to in. (13 mm) deep 2. Stud 1 in. scan: Locates the center and edges of wood and metal studs up to 1 in. (25 mm) deep 3. Stud 1 in. scan: Locates the center and edges of wood and metal studs up to 1 in. (38 mm) deep 4. Metal Scan: Detects metal up to 2.36 in.(60mm) deep 5. AC Scan: Detects live unshielded AC wires up to 2 in.(51mm)deep Specifications: Reliable and Convenient Wall Scanner The stud detector uses an intelligent microprocessor chip with the highest sensitivity which can precisely and rapidly detect wood, pipes, metal and AC wires hidden in the walls, floors and ceilings.Whether you are a professional, homeowner or a DIY enthusiast, you will make your home projects easier. 5 in 1 Stud Finder Deep Detection The digital wall scanner has 5 scanning modes, includes 1/2", 1" and 1-1/2" scanning mode to locate the center and edge of woods, beam, joist, metals or deeply embedded objects; Metal scanning mode to detect ferrous and non-ferrous metal up to a depth of 2.36 inches; AC scan detects unshielded voltage lines up to 2 inches. Automatic Calibration and Easy to Use Turn on the stud finder, lay it flat on the wall, press the Scan Button and it is ready for calibration. When the wood, metal and AC wires hidden is found, the intelligent micro-sensor chip will flash and beep.Auto-calibrational the stud scanner makes easy to use and ensures that most objects behind the wall can be detected. LCD Display and Audible Warnings The stud finder & scanner have LCD display and audible warnings.The signal bar on the LCD display alerts you to the distance and direction of the approaching object, and a beep sounds to determine the location.This LCD display is also backlit which can provide clear display even in low light conditions,such as displaying detection modes, center pointing, low battery indication and more! Wire Warning Indicator Stud finder's AC wire Warming detects up to 2" deep, when you scan in Stud Scan/Deep Scan/Metal Scan mode, the Wire Warning is always on to alert you to the presence of live AC wires, which helps you avoid danger when mounting your TV, bathroom cabinet, photo frame, garage racks. Package Included: 1 Metal Detector Stud Finder Meter (no including Battery) 1 User Manual