VDV ranger TDR kit used for test and measure cable with the latest technology. Time domain reflectometry spread spectrum (TDR-SS) technology provides accuracy up to +/- 1% and +/-3 ft. (0.91 m) by eliminating interference when measuring cable. TDR-SS technology broadens TDR environments by operating in safety extra low voltage (SELV) rated environments as defined by IEC. (SELV is 60 volts DC or Peak AC 45 volts RMS). Measure cable length up to 3000 ft. (914.4 m) includes voice, data, video, doorbell, siamese, lamp-wire and NM cables. Determine if cable run is broken or damaged. Ensure compliance and identify cable runs outside specification. The Tone generator traces and identifies cables. Four tone cadences available. (Requires analog tone probe - VDV526-054 or VDV500-060 both sold separately). Measure cable remaining in box or on a reel. Simplify cable estimating and bill jobs more accurately. Includes custom designed polyester carrying case. Adapter cord set includes BNC to F-connector adapter, F-connector adapter, insulated push-on F-connector to alligator clips, insulated BNC connector to alligator clips and insulated push-on F-connector to RJ45 modular plug.