1.5-in-1 wall detector with 5 scan modes to detect metals, AC cables and deeply embedded objects behind floors, ceilings and walls, plus wall stud detection. Bolt finder with LCD display for locating nails, reinforcement rods and other hidden metal objects; a reliable bolt metal scanner. Wall metal viewfinder with a simple, practical design and 5-in-1 stud finder functionality for easy use and accurate locating. Wall metal detector built with durable workmanship and materials to ensure long-lasting performance; bolt sensor provides reliable metal detection. Use scenarios: - Installing a TV, shelf or cabinet: locate studs and avoid hidden wires before drilling. - Renovation or demolition: find nails, bolts and metal pipes behind walls to plan cuts safely. - Electrical or ceiling work: identify live AC cables and concealed metal components to prevent damage or shocks.