The Klein Tools VDV500-820 Tone & Probe PRO Wire Tracing Kit is an essential tool for any wiring job. This professional grade kit includes an analog tone generator and tracing probe for non-energized wiring. It features 5 distinct cadences, allowing it to transmit signals for over 1000 feet. Its RJ11 plug and RJ45 data jacks make it easy to confirm polarity and test for continuity, while its ABN clips and terminal block give you secure connections to wires. Plus, the work light on the probe tip is perfect for low light areas. Going the extra mile, the kit also includes a padded pouch for convenient storage.