General description The 4-in-1 Wall Detector is a versatile tool designed for detecting metals, wood studs, and electrical wires hidden in walls, floors, and ceilings. It features four detection modes: metal, wood, magnetism, and AC cables, allowing users to quickly and accurately locate nails, screws, rebar, and wooden beams. The device is ideal for both professionals and DIY enthusiasts, making it a practical addition to any home, office, or workshop. Technical specifications Detection modes: Metal, Wood, Magnetism, AC cables Maximum positioning depth for wood and metal: 19mm Maximum depth for depth scan: 38mm Maximum metal detection depth: 60mm AC cable detection depth: 51mm Installation Calibration: Select the mode and press and hold the Scan button to calibrate the tool. Wait for the reduction lever to disappear and beep to confirm calibration. Recalibration: If the device is shaken or lifted, recalibrate it by placing it in the air in metal/AC mode. Usage Scan the wall: Once the