Amprobe AT-2005-A Avanced Wire Tracer Ind Multipurpose with Battery Booster Wire tracer locates and traces energized and non-energized wires, breakers, neutrals, and grounds to identify shorts, ground faults, and broken wires R-2000 receiver can read transmitter signals on energized or non-energized systems T-2200 transmitter traces wire continuity and wire grounds on non-energized systems and S-2600-A transmitter compatible with 9 to 300V AC or DC Clamp-on transmitter attachment injects signal for non-contact operation Receiver can trace energized wires buried or hidden behind walls up to 13 feet deep