LingsFire Multifunctional Remote Network Cable Tester Rj11/ Rj45 /USB/BNC LAN Cable Cat5 Cat6 Wire Tester Test various types of cables: RJ-11, RJ-45, USB, BNC, LAN cable Cat5, Cat6,etc. Test installed wiring or patch cables. Tests shielded (STP) or unshielded (UTP) LAN cables.Test shields in USB cables. Can test from 2 remote points. Beeper provides audible annunciation of test results. Remote unit stores in Main unit. Faults Indicated: No Connections, Shorts, Opens and Crossover. BNC terminator 25/50 Ohm indications. Straight or crossover indications. LEDs indicate connections and faults of wire and pins. RJ-11/RJ-45 are equipped with 50u gold plating. Detachable module for testing two remote points (Max. cable length: 1000ft). Ergonomic portable handheld design. Powered by a 9V Alkaline battery. (Not included) Convenient battery access. Palm size with a soft leather carrying bag. Simple one button test, fast speed testing straight or crossover indications, battery good or battery low indication and automatic deactivation.