The CTX200(P) 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. Available with (CTX200P) or without (CTX200) a filtered, lighted inductive tone probe. Complete with belt clip, RJ45 cable coax terminator, case, and 9V battery. 1 year warranty.