slbrillre5-in-1 Multifunctional Detection5 scanning modes, including 1/2 inch scanning mode locates the center and edges of wood; Medium scan locates the center and edges of wood up to 1 inch deep; Deep scan locates the center and edges of wood up to 1.5 inches deep; Metal scan detects metal up to 2.36 inches deep; AC scan detects live up to 2 inches deep Easy to UseQuickly and accurately locates the edges and center of invisible wood and metal studs, joists behind walls, floors and ceilings, also indicates the presence of live AC wire. Press ON/FF to start, press the mode switch button, slowly slide the wall scanner on the surface of the object to be tested, the LCD screen will light up and there will be arrows indicating to guide you to slide Digital LCD Displayslbrillre This wall scanner features a backlit LCD screen and a low battery indicator to inform you to replace your battery for optimal performance. When you locate the center of the stud, the signal strength indicator will be full and the buzzer will sound, automatically after 3min. Turn off the power without any action Precise Positioning The device features automatic calibration to ensure fast, accurate and effortless detection, with exact location of the center of beams and rails, to enable them to drill accurately. When you are looking for the location of the wood, hold the tool straight up and down, parallel to the studs, when you approach the target, move in the direction of the arrow on the screen to locate accurately Wide Range of ApplicationsCompact design, the device ensures space-saving storage in a tool bag, and easy handling. Whether you are a professional, a homeowner or a DIY enthusiast, you can find great use in this electronic stud scanner. It will automatically shut down if there is no operation within 3 minutes Features: - Large, easy-to-read LCD screen - 5 Different Scanning Modes - Intelligent Beep Function - Automatic Calibration - Precise Positioning - Compact and Lightweight Design - Automatic Power Off Instructions for Use: 1. Calibrate the device by placing the scanner flat on the wall and pressing the power button to activate its 3-second calibration cycle. 2. Switch to the desired mode (Stud/Metal/AC) then press and hold the power button and slowly slide the tool across the surface. 3. When the signal bar is full and the audible alarm is the loudest, it means you have found the center of an object. Mark it with your pencil. Usage Tips: 1. Keep the stud finder up and down, keep it parallel to the stud and the wall. 2. Avoid your palm or any other part of your body touching the surface of the wall scanner and being scanned by the product. 3. Keep a fixed place when detecting the metal stud, metal rebar/pipe, live wire, do not rotate the wall scanner or press the product on the wall. 4. If you get unstable data on the wall scanner screen, it may be affected by the moisture or humidity inside the wall. 5. The wall scanner can detect the wire/pipe inside the wall as the same stud detection mode because of its similarity. 6. Always turn off the power, gas and water before entering any surface. 7. If you shake or lift the scanner coincidentally, the device needs to be recalibrated.Package Contents: - 1 x Wall Detector