The Triplett CTX200 RJ45/Coax Tester performs a TIA568 test on CAT5/6 network cable (RJ45) with instant PASS/FAIL results — opens/shorts, reversals, split pairs, and continuity. It is ruggedized and cushioned for toolbox use with a hidden drawer for remote storage. Includes a built-in tone generator for tracing and troubleshooting. Complete with belt clip, RJ45 cable coax terminator, case, and 9V battery. 1 year warranty. Model CTX200P is also available and comes with a filtered, lighted inductive tone probe.