Tripp Lite Cable Tester Wire Tracker Length Fault Location RJ45 RJ11 BNC USB - Open Circuit Testing, Short Circuit Testing, Reversed Pair Testing, Network Testing, Fiber Optic Cable Testing, LAN Cable Testing, Cable Tracing, Coaxial Cable Testing - USB - Network (RJ-45) - Optical Fiber, Twisted Pair, Coaxial - 2Number of Batteries Supported - 9V - Battery Included: