Multi mode detection: This stud finder operates in three modes: stud mode, metal mode and ac mode to accurately locate wood studs, metal pipes and live wires behind walls. This helps ensure safe drilling and nailing by avoiding hidden hazards with precise detection technology. User friendly design: Features a bright LCD display for clear readings and an automatic shutoff after 3 minutes of inactivity to conserve battery life. The ergonomic handheld design with ABS casing provides comfortable operation during extended use. Live wire protection: The ac mode identifies unshielded live wires up to 2 inches (51 mm) deep, preventing dangerous electrical accidents. This essential safety feature is ideal for home improvement projects where wiring may be hidden. Deep metal detection: Capable of detecting magnetic metals up to 3.2 inches (80 mm) and nonmagnetic metals up to 2.4 inches (60 mm). Useful for locating pipes, rebar, nails and other concealed metal objects during renovation or construction projects. Practical use scenarios: Mounting a television, shelf or cabinet: locate studs for secure mounting while avoiding hidden wires and pipes. Home renovation: identify live wiring and metal components before cutting or drilling into walls. Plumbing or electrical work: detect pipes or rebar behind walls to prevent damage during demolition or remodeling.