1. LCD backlight display and sound indication: The illuminated graphic LCD and sound signal indicate the mode, detection intensity, etc. 2. Multi-mode detection: Detects metal studs up to 1/2 inch (38 mm), metal rebar or pipes up to 3 inches (76 mm), and AC live wires up to 3 inches (76 mm). 3. Function: Quickly locates the edges and centers of metal studs, pipes, rebars, joists behind walls, floors and ceilings, and can also indicate the presence of AC live wires. 4. Widely applicable: This wall detector is very useful when you are doing wall decoration (such as installing some wall-mounted furniture or hanging some paint), kitchen renovation, renovation projects. It helps detect and avoid accidental drilling 5. Very suitable for installing some wall-mounted furniture or hanging some paint), kitchen renovation, renovation projects. It helps detect and avoid accidental drilling into live wires or metal pipes to ensure that you can complete such DIY jobs with confidence