Klein Tools VDV500163 Digital Tone Generator Active Network Wire Tracer (ABN Bed of Nails Clips, RJ45 Data Compatibility, Cable Mapping Transmitter) Tip Guard this wet polisher is built this wet polisher is built to withstand the wet One Handed Ratchet Adjustment: Large knob allows for quick sizing from hat sizes 6 Loose Wire Pairs Wire Mapping Engine: Pin to Pin Verification with Shield Detection Continuity Verification: Yes Line Polarity Tracking: Yes Tone Pattern Options: 3 Distinct Cadences Power Cell Requirement: 4 x AAA Alkaline Batteries Active Power Longevity: 20 Hours Chassis Material: Durable ABS Polymer Device Length: 2 toggle through the three distinct tone patterns to establish a unique signature