The Most Accurate and Highest Security - The stud finder is specially designed. The most advanced sensor technology is used to accurately and quickly locate metal pipes, fire lines, studs, wooden frames, steel bars and support beams hidden behind walls, floors and ceilings. Whether you are a professional, a homeowner or a DIY enthusiast, you can find good use in this electronic screw scanner. The wall scanner includes five different scanning modes, suitable for metal pipes, fire lines, studs, wooden frames, steel bars and supports, as well as ceilings, deep objects behind walls. The bolt mode can detect wooden beams and joists in the dry wall, up to 1.5 inches. The metal mode can detect up to 3 inches of pipe. Depth mode detects up to 3 inches of wood and metal components, while 85-240V AC can be used for up to 2 inches of voltage and live wire Self-calibration and ergonomic grip, comfortable to use, before testing, please hold the scan button for 1-2 seconds. Self-calibration provides maximum reliability and accuracy for users. The ergonomic design of this wall stud finder allows it to be fixed from any angle LCD screen, displays the required material and the exact position of the stud - Digital stud scanner with large LCD screen and loud warning, can detect the exact position of the object. When the material is found, the LCD screen will beep to let you know if you are close to the target. Fast detection saves time and energy for users and makes it easier to complete tasks Size: about 171*70*35mm Color: silver Quantity: 1 pc