New 5E 6E SC8108 CAT5 RJ45 Network LAN Length Cable Tester Meter GRAY Efficient, effective, reliable, easy and safe to use.A person is enough to complete cable continuity check and cable sequence. Indicates pair integrity of the cable. Measure length and pair with or without far-end recognizer. Locates the wiring or connection error.Measures cable length and determine the distance of open circuit and short circuit. Unit of Measurement: Display in meter (M) or feet (FT). User can set self-calibration factor by a given length cable. Permits you to check wiring error in 5E/6E twisted cord network, coaxial cable and telephone line. Applicable for open circuit, short circuit, jumper wire, reverse connection or cross-talk interference. Dynamically calibrates cable length and make length measurement as accurate as 97%. Portable unit with long battery life (wait-case or standby mode for over 50 hours). Auto time delay shut off. Comes with 1 far-end passive test jack.Far end recognizer with prompt voice.Single board computer software watchdog design and reliable operation.Self-checking function and automatically compensates any change in battery capacity or ambient temperature.Simple and easy to use, big LCD screen to display test results.Compact, lightweight, easy to carry and use. High quality, with two years warranted.