The best stud finder used to find the wood and metal studs or joists 1, Avoids drilling or cutting into unseen hazards in walls, floors and ceilings.2, Electronically locates cables, gas and water pipes, electronic conduits and steel joists.3, Detects mains power and traces breaks in circuits and cables.4, Audio and visual indicator system with battery low warning light.5,D Metal test: 15mm ...