Smart Material-Detecting Wall Finder

A portable, battery-powered wall scanner that distinguishes between wood, metal and live electrical wiring behind standard interior walls. Physical specs: 12.5 cm length, 6.2 cm width, 3.8 cm depth; weight 180 g. Detection depth: up to 50 mm. Works on drywall, plaster, and masonry substrates typical in UK homes. Features colour-coded LED status lights and progressive beeping patterns for intuitive interpretation. No software, no app, no pairing — just immediate tactile and auditory feedback. Ideal for renters, new homeowners and tradespeople needing fast, trustworthy verification before driving screws or drilling holes.