Description: Single person can cable connectivity tests Can detect wiring faults 5E, 6E coaxial cable and telephone lines, including: open, short, jumper, reverse and crosstalk Wiring / connection error localization Measure cable length and locate the exact location of OPEN SHORT The cable length dynamic calibration function, so that the length of the measurement accuracy up to 98% Easy to use, large-screen display of the test results at a glance easy to carry, auto delay off Have remote identifier can plug length measurement The distal end of the instrument to identify the audio prompt Specification: Port: Tester master port (M), tester loopback port (left), remote identifier port (right) Calibration accuracy: 3% (± 0.5 m or ± 1.5 ft) (calibrating cable> 5 m) Shipment accuracy: 5% (± 0.5 m or ± 1.5 Yingchi) (AMP, AT & T Class 5 cable) Length Calibration: User can set self-calibration factor by a given length of cable; cable length calibration of more than 5 meters Package Includes: 1xNetwork tester