Features 1. 6-in-1 bolt detector wall scanner green backlit electronic stud detector student detector tool, used to detect 1.5-inch dry wall student stoves 2. Advanced detection mode: The bolt detector wall scanner provides multiple scanning modes for bolt detection from 1/2 inch to 1/2 inch, with a diameter of 38mm, which is very suitable for all your building and decoration projects. 3. Specific functions of electronic vibration detectors: With advanced technology, our equipment can accurately identify pin on walls and even detect the deepest wood or metal structures. Green backlight ensures clear and visible measurement values under lighting conditions. 4. Improved BOD locator universality: This tool has a metal detection mode that can identify magnetic and non-magnetic metals at a deeper level to ensure comprehensive coverage of safety and accuracy in various applications. Purpose: Quickly locate wood, metal, and AC wires hidden in the walls, floors, and ceilings of a house. It can work in Flat noodles, wallpaper, wood floor, acoustic ceiling, spray painted wall and other places. Prevent you from encountering danger when installing televisions, cabinets, garage racks, etc. Specification Packaging size: 174 * 76 * 41MM Weight: 170G Battery: 9V battery (shipped without battery) Battery model: 9V battery 6F22 Selection of detection mode: Screw mode: In stud mode, there are three scanning modes available to match the surface thickness of the scan: The 1/2 "scanning mode can detect depths of 1/2 inch (13 millimeters). The 1 "scanning mode can detect depths of 1 inch (25 millimeters). The 1/2 "scanning mode can detect depths of 1/2 inch (38 millimeters). If you don't know the detection depth, it is recommended First, use the 1/2 "scanning mode. If the 1/2" scanning mode is not detected, please use 1 "or 1" Change to 1/2 "scanning mode. Metal mode: It can accommodate magnetic metal up to 30 millimeters (3.2 inches) deep (15 millimeters in diameter) It can detect non-magnetic metals up to 60 millimeters (up to 26 millimeters) in copper pipes (diameter 13 millimeters). Communication mode: It can handle unprotected AC cables up to 2 inches (51 millimeters) deep Package Include: 1x multifunctional metal detector(without battery) </div> </br.>