Highly Accurate Wall Scanner: The stud finder uses an advanced sensor system to ensure accuracy after years of testing and upgrades. It can quickly locate studs in wood, metal, and live wire. Whether you're a professional, homeowner, or DIY enthusiast, this handy tool is incredibly useful. Simply calibrate the tool before each scan, and then you're ready to drill. 4-in-1 Scanner with Deep Detection: The scanner includes four different scanning modes for wood, beams, joists, metal, AC wires, and objects deeply embedded behind floors, ceilings, and walls. The STUD mode detects wood beams and joists in drywall up to 1.9 cm. The Deep mode detects wood and metal studs up to 3.8 cm. The Metal mode detects pipes, rebar, aluminum, and copper up to 6 cm. AC for voltage and live electrical lines up to 5.1 cm. Enhanced LED Display and Clear Audible Warning – The wall sensor features a large LED display and a loud, clear audible warning. As you move this tool along the wall, the LED display indicator will give you a clear direction and precise location of objects, and its audible warning will show you the edge or center of that object on the wall. This will make your DIY projects easier and faster. That's why it's recommended to use this handy and indispensable tool. Automatic Calibration for Efficient Scanning: The Mocita stud finder will automatically calibrate itself when you turn it on. Make sure it is calibrated in a position without any studs or AC wires nearby. In stud and deep mode, simply calibrate it on the wall. In metal and AC mode, please calibrate it in the air. You then receive a precise warning to avoid drilling into metal wires, AC cables, or other faults. Size: approximately 172 x 76 mm. Color: silver-black Quantity: 1 piece (without battery)