1.5-in-1 Multifunction Tester - Five detection modes: 1/2 inch (13 mm) stud detection, 1 inch (25 mm) stud detection, 1.5 inch (38 mm) stud detection, metal scan (60 mm), and AC scan (51 mm). - Extended multimode detection: identifies metal pipes and live electrical wires behind walls, ceilings, and floors; suitable for DIY, woodworking and electrical work. - Precise sensors: high-precision sensors scan walls quickly and accurately to support safe and efficient drilling or mounting. - LCD display and audible alarm: clear digital readout shows results and provides audible and visual alerts when objects are detected behind the wall. Typical uses: - Mounting a heavy cabinet or shelf: locate studs for secure mounting while avoiding wires and pipes. - Renovation or remodel work: detect live wires before cutting into drywall. - Electrical outlet or fixture installation: identify safe drilling paths behind walls and confirm stud locations.