4 in 1 ModeThe wall detector has 4 modes, suitable for detecting metal, wood, magnetism, AC wire. You can quickly and accurately fix the position of nails, screws, rebar, wooden beams, AC cables, etc. LCD Display and BuzzerLarge LCD display shows the detection mode, depth, signal strength and battery level. When an object is found, it will tell you whether it is closer to the center of the target by the signal strength and beep strength, helping you quickly find the center of the bolt Ergonomic DesignThis material detector has a soft grip coating that provides a firm and comfortable grip, ensures safe and comfortable handling and prevents slippage. The unit has a compact design and is small and easy to carry. Fast and Accurate PositioningHigh accuracy helps you quickly locate hidden metal in walls, floors and ceilings, wood behind drywall or AC electrical lines, find the exact location in time. Durable and practical for home, office and workshop. Ideal for professionals and DIY enthusiasts. Note: The data are all measured manually, please allow 1-3cm error due to differences in light and display, there may be some color differences, please refer to the actual item received.