XIANQI Accurate and Rapid: This stud sensor will be automatically calibrated when it opens, it adopts an intelligent micro-sensor chip with the highest sensitivity which can find edges and center of metal, studs, joists, pipes, and live AC wire behind walls, floors, and ceilings accurately and quickly. Whether you are a professional, homeowner, or a DIY enthusiast, you can find great use in this electronic stud scanner. 5 in 1 Multiplication Plus Deep Detection: The beam finder includes 5 different scanning modes, which provides users with more detection needs. It is suitable for woods, beams, joists, metals, AC wires, and deeply embedded objects behind the floor, ceiling, and wall. Stud mode detects wooden beams and joists in drywall. It features 5 mode: 1/2 inch(13 cm), 1 inch (25 mm) and 1.5 inch (38 mm), Metal scan (60 mm)and AC scan (51 mm). Upgrade Design of LCD Screen: The wall stud locator has a graphical LCD and sound alarm, which can display the desired stud material as well as the precise position of the stud, and detect the accurate location of stud metal Ac wires. When finding the material, the LCD will indicate the direction and the intensity of sound tells whether you are more close to the target. The fast detection saves users time and effort, making task completion easier. Easy to Use: The sensor wall scanner can be automatically calibrated anywhere on the wall to successfully find the center of studs in one step. Select the probe type, then just press and hold the side button and scan horizontally across the object surface. Auto power off without any operation after 60 seconds. Simple and Fast: The stud finder is lightweight and has an ergonomically designed one-key-operate handle, easy to use. This stud joist finder wall detector can quickly locate the metal wood AC wire that is hidden in the walls, floors, and ceilings of your house, help you find the exact stud while installing TVs, cabinets, garage shelves, etc. OPERATING TIPS: 1, Grasp the handle with your thumb on one side and your fingers on the other side. Make sure your fingertips are resting on the handle and not touching the surface being scanned or the scanning head of the tool. 2, Hold the tool straight up and down, parallel to the studs, and do not rotate the tool. 3, Keep tool flat against the wall and do not rock, tilt, or press hard when slowly sliding across the surface being scanned. 4, In case of deeper studs(thicker walls), when the center of the stud is located, not full bars will show on the screen. If you still can't locate a stud, try stud 1 in. or stud 1 1/2 in. stud mode. Szie:165*76*35MM Package Includes: 1 X Stud Finder(Battery not included)