5 in 1 scanning modes The digital wall scanner offers five scanning modes. It includes three wood/structural depth settings (1/2 inch, 1 inch, and 1-1/2 inches) to locate the center and edge of wood, beams, joists, metals or deeply embedded objects. It also includes a metal scanning mode to detect both ferrous and non-ferrous metals up to 2.36 inches, and an AC scan mode to detect unshielded AC voltage lines up to 2 inches. Accurate and rapid detection Equipped with a high-sensitivity intelligent micro-sensor chip, the device quickly and accurately finds the edges and centers of metal, studs, joists, pipes, and live AC wires behind walls, floors, and ceilings. LCD display and audio alarm The unit provides an LCD display and an audible alarm to indicate precise locations. As you approach the target, the beeping intensity increases, helping you determine proximity to the object. Easy to use calibration and operation Turn on the stud finder, lay it flat against the wall, and press the scan button to calibrate. When wood, metal, or AC wires are detected, the intelligent micro-sensor chip will flash and beep to confirm the location. 2-3 practical use scenarios - Mounting a heavy shelf or TV on a wall: locate studs or joists to ensure secure anchoring and avoid hitting hidden wiring or pipes. - Installing electrical outlets or running cables: detect live AC lines behind walls before cutting or drilling to prevent contact with electrical wiring. - Renovation or drywall work: identify the positions of studs, joists, beams, and nearby metal objects to plan safe drilling, cutting, or embedding of fixtures. Key attributes at a glance - 5 in 1 scanning modes: three wood depth settings (1/2", 1", 1-1/2"), metal mode up to 2.36" depth, and AC voltage detection up to 2". - High-sensitivity micro-sensor for fast, accurate edge and center detection of metal, studs, joists, pipes, and live wiring. - LCD display and audio alarm to pinpoint locations with proximity feedback. - Simple one-button calibration: flat against the wall, press scan, and receive visual and audible confirmation when objects are detected.