This compact multi detector helps you locate bolts, studs, wooden members and live wires behind walls or in furniture, making mounting and electrical work safer and easier. - Detection coverage: bolt detector for bolts behind the same object, metal stud finder, and wood member detection; also detects AC cables. - Audio and display: acoustic alarm with an analogue display to clearly indicate detected objects. - Power and reliability: powered by a 9 V battery (not included); designed to avoid live wire mistakes for safer results. - Design and handling: compact hand housing with a slip-resistant, ergonomic grip for comfortable use. - Ease of use: user friendly enough for non professionals; reduces misreads and errors when locating hidden materials. Applications and use scenarios: - Mount a television, shelf or cabinet on drywall or plaster by locating studs and avoiding hidden bolts or wires. - Install outlets, switches or lighting by tracing electrical cables behind walls before cutting or drilling. - Reinforce furniture or build projects by finding wooden studs or braces behind panels. Key attributes: - Function: detects metal, wood and live AC cables; audible and visual feedback. - Compatibility: suitable for walls, furniture, and other common construction materials. - Size and material: compact handheld housing with an ergonomic grip. - Performance: quick, clear readings with reduced risk of hitting live wires.