The Tempo Communications 701K-G Professional Tone Generator and Probe Kit fits all line operation and wire tracing needs. This product allows technicians to identify the conductor in a bundle of wires (telecom, datacom, etc.) The Tempo 701K-G Professional Tone and Probe Tracing Kit comes with a 77HP-G high power tone generator, a 200EP-G tone probe amplifier, and a rugged woven nylon carrying case.