Klein Tools VDV500-705 Tone & Probe Test Kit with 4 x AAA Batteries, 7.2 Inch Width

The Tone & Probe Test and Trace Kit provides simple toning and tracing of non-energized wire. The easy-to-use tone generator traces wire when used with the included probe. Alligator clips are provided for unterminated wires and an RJ45 to RJ45 cable to tone or test data cables. The responsive probe is a tone tracer with a durable, non-metallic, conductive tip, a speaker with audible output and headphone jacks for use in noisy environments (headphones not included). The worklight on the probe illuminates dark spaces. The toner and probe together perform pin to pin wire map test.