Detect Metal, Voltage And Studs with the Draper Metal, Voltage And Stud Detector The Draper Metal, Voltage And Stud Detector Detects live and dead electricity cables, metallic water pipes, nails and wood studs in partition walling. The Detectors buzzer sounds when objects are located. Uses a PP3 size battery (sold separately). Display packed. Features: Detects live and dead electricity cables, metallic water pipes, nails and wood studs in partition walling Buzzer sounds when objects are located Specification: Maximum depth penetration: live AC wires 75mm, metal 75mm, wood 18mm, metal pipes 38mm, copper pipes 30mm. Manufactured to IP52 Specification Weight: 0.2Kg