Identifying the termination point of a wire among a bundle of wires can be difficult and time consuming if you don't have the right tools. The Pro220K Advanced Wire Identification Kit identifies unknown wires in seconds. The Pro220K utilizes a powerful Pro110 Tone Generator to send a tracing tone down the wire, while the user employs the Pro210F Advanced Tone Probe at the termination point, listening for the loudest signal emanating from a wire. By finding that tone, the user is identifying the wire in question. The Pro220K uses inductive forces to sense the signal without the need to actually touch the wire.