Easily and accurately locate wires, breakers, and fuses with the AT-6010 Advanced Wire Tracer. When the Transmitter is connected to the circuit (Energized or De-energized, up to 600 V AC/DC in Category I through Category III electrical environments), the Receiver easily detects the transmitted signal in the wires or cables behind walls, ceilings and floors. Work safely on energized circuits without the need to take equipment offline. The Transmitter also features high signal mode for general tracing and a loop mode designed specifically for locating shorts, as well as two optimal tracing frequencies that are automatically activated based on the detected voltage. The AT-6010 can be combined with the CT-400 Signal Clamp (optional accessory) for applications where access to circuit contacts is limited or where users are not able to connect the Transmitter to the circuit through test leads.