... wire,pipe,power detector Electronically locates cables,gas and water pipes,electronic conduits and steel joists. WPP123 wire,pipe ... walls,floors and cellings.Electronically locates cables,gas and water pipes,electronic conduits and steel joists.Detects mains power ... light.Metal test: 15mm diameter steel tube,24mm depth Voltage mode: AC 100V electric wire(40mm depth) WPP123 Digital Metal Detector