Description:1. The stud detector uses an intelligent microprocessor with the highest sensitivity, which can precisely and quickly detect wood, pipes, metal, and AC wires hidden in walls, floors, and ceilings. Whether you're a professional, homeowner, or DIY enthusiast, you make home projects easier.2. Turn on the stud detector, lay it flat on the wall, press the scan button, and it's ready for calibration. When wood, metal and AC wires hidden is found, the smart chip microsensor will flash and beep. The automatic calibration of the stud scanner makes it easy to use and ensures that most objects behind the wall can be detected.3.The stud finder and scanner have LCD display and audible warnings. A signal bar on the LCD warns you of the distance and direction of an approaching object, and a beep indicates the location. This LCD display is also backlit, which can provide a clear display even in low light, such as displaying detection modes, center indicating, low battery indication and more!4.Stud finder AC wire Warming detects up to 2" depth, when scanning in scan/deep scanning/metal scanning mode, wire warning is always on to warn you of the presence of AC wires, which helps to avoid danger when assembling TV, bathroom cabinet, photo frame, garage stands.5. The goal: quickly locate wooden, metal, and AC wires hidden in the walls, floors, and ceilings of homes. It can work on moldings, wallpaper, wooden floors, soundproof ceilings, spray-painted walls and other places. Avoid danger when installing TVs, cabinets, garage racks, etc. The HW430 multifunction wall scanner offers five scanning modes:1. Stud 1/2 inch. Scan: locates the center and edges of wood and metal studs up to 1/2 inch. (13mm) deep2. Stud 1 in. Scan: locates the center and edges of wood and metal studs up to 1 inch. (25mm) deep3. Stud 1 1/2 inch. Scan: Locates the center and edges of wood and metal studs up to 1 1/2 inches. (38mm) deep4. Metal Scan: Detects metal up to 2.36 inches (60mm) deep5. AC Scanning: Detects live, unshielded AC wires up to 2 inches (51mm) deepSpecifications:Name: 5 in 1 detector wall gainsColor: Black/Orange/Black SilverBattery: 9V 6F22 battery (without battery)Product size: 152*62*28MMDagh: 168gPackage Included:1 Stud Finder (without battery)1 User Manual