High Accuracy Stud Finder: Sensor Advanced sensor technology can accurately and quickly locate metal wood AC line. It is used to detect the center position of metal or wood studs in the wall. What's more, it can detect the metal and voltage features in the wall, and whether the wires in the wall are live. Whether you are a professional or a DIY enthusiast, you can find great use in this scanner. digital studs. 4-in-1 Multi-Function Wall Scanner: The digital wall scanner includes four different scanning modes for wood, beams, joists, metals, AC wires and deeply embedded objects. Deep Scan locates the center and edges of wood and metal studs up to 1.5 inches deep; Metal Scan finds metals up to 2.36 inches deep; AC scan detects live unshielded AC wires up to 2 inches deep. Easy-to-Read LCD Display: The digital stud scanner features a large LCD display with a large audible warning to detect the precise location of objects. When you find material, the LCD screen shows the direction and the intensity of the beep tells you if you are closer to the target. Quick detection saves users time and effort, making it easier to complete tasks. Auto-correction function: When the beep sound and screen disappear, place the beam sight in wood on the wall, open the stud finder and complete the calibration. Automatic calibration before use provides users with maximum reliability and accuracy. Then put it on the wall. After picking up the edge of the stud, the wood beam finder will flash and beep. Safety Protection: The stud finder can quickly locate hidden wood, metal and AC wires in the walls, floors and ceilings of homes. It can work on different wall surfaces, such as slats, wallpaper wooden floors, soundproof ceilings, whitewashed walls, etc. Helps you avoid hazards when installing TVs, cabinets, garage shelves, etc. Product Description Whether you're hanging pictures, installing a new set of shelves, or getting ready to start an addition, knowing where the studs are in a wall can be extremely practical! And a good stud finder can mean the difference between a successful DIY home project and a disaster. This is why a stud finder is important.This Stud Finder adopts the leveling sensors with high accuracy. It's the best choice for locating AC studs/metals/wires quickly and accurately!Electronic stud finders have changed everything. Electronic stud finders give you an incredibly accurate view of the wall and show you exactly where each stud is. 1. High accuracy/reliability/consistency 2. Identifies stud width as well as location< br> 3. Easy-to-read screen and quick identifiers when hitting a tenon 4. Increases sensitivity to more than 2 inches 5. Upgrade model with 4 scanning modes to meet different needs< br> Note: 1. This stud finder can quickly locate metal, studs, joists, pipes, live AC wire behind all kinds of walls, floors and ceilings, but except the panel wall. cement and brick wall, you can use it on popcorn ceilings, plaster walls, textured surfaces, drywall, etc. 2. Please note: 9v battery is not included in lPackage Step 1: Calibrate the tool before each scan After c Choose the mode, press and hold the scan button (on the side of the tool) to calibrate this tool. Wait for the reduction bars to disappear and beep to confirm that the calibration is complete.In tenon/deep mode, place it on the wall where you want to detect it to calibrate it; In AC/Metal mode, put it in the air to calibrate.Step 2: Scan the wallHold down the button, then slowly move the stud finder along the wall, if you shake or accidentally lift the scanner, the device needs to be recalibrated.The narrow on the screen with the beep changes, guides you to find the location of the stud.Step 3: Find the location of the stud When the signal bar is full and the beep sound is loudest, it means you have found the center of an object. Mark it with your pencil.