Klein Tools VDV500163 Digital Tone Generator Active Network Wire Tracer (ABN Bed of Nails Clips, RJ45 Data Compatibility, Cable Mapping Transmitter) Dovetail Bit it features an impressive IP67 it features an impressive IP67 rating Metric Meters Manufacturer Warranty Term Two Year Limited Warranty Pro Tip: When taking long range 165 foot interior measurements across open framing or dimly lit warehouses 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 Its rugged angled bed of nails clips and universal RJ45 port allow network technicians to perform instant continuity diagnostics and polarity verification across copper systems