The Tempo Communications 801K Tone and Probe Kit is designed for more accurate wire identification. The Tempo 77HP/6A high-power tone generator provides bent nose piercing clips, increased talk battery supply and higher voltage protection. It features +7 dB output for reception up to 50,000' and through low-resistance circuits, modular connector and two J.S. Popper 6A type (piercing) clip leads. The tracer is compatible with ESS, Step and Crossbar. Output tone is isolated from all DC voltages. All tests may be detected, traced or located by audio or LED indicator. Just attach the leads to wire or cable via alligator clips or modular plug.