Klein Tools Toner-PRO Tone Generator

This tone generator helps with wire identification, wire tracing and wire pair identification. The tone generator provides five distinct tones for exact pair identification and features angled bed-of-nails (ABN) clips to securely attach to wires. An plug easily connects to telephone or data jacks to tone wire pair. Check for continuity and polarity with results indicated by clearly labeled, easy-to-read LEDs.