Detects live or dead electricity cables, metallic water pipes, nails and other metal objects and wood studs in partition walling without causing surface damage. Maximum depth penetration is 27mm. Requires a PP3 size battery, sold separately. A detailed instruction leaflet is enclosed with each tool. This detector is ideal for home repairs and renovations, quickly and safely locating wood studs, metal pipes, and electrical cables. It pinpoints live wires, nails, and other metallic objects within partition walls without causing surface damage, making it a valuable addition to any toolbox.