Advanced Wire Tracer, its never been easier to locate Energized and De-energized wires, breakers, and fuses. In combination with the Transmitter, the Receiver detects the signal in wires and cables behind walls, ceilings and floors. The Transmitter works on Energized and De-energized circuits up to 600 V AC/DC in Category I through Category III electrical environments and features high signal mode for general tracing and a loop mode designed specifically for locating shorts. The complete kit features test leads and accessories International accessory kit for use outside North America.