VicTsing RJ45 RJ11 Cable Tester Telephone Wire Network LAN TV Cable Electric Cable Tester Wire Line Finder Tracker This product is a multi-functional handheld cable testing tool, which is a necessary testing tool for telecommunication engineering, wiring engineering and network maintenance personnel, etc. And, it has wide application with reinforced cable types and multiple functions. This professional wire tracking set is the latest specialized instrument for tracking various cable and wire (be commonly used) and is composed of an emitter and a receiver. This item allows us to find target wire among plenty cables rapidly and accurately. The receiver has both sound and LED signal indicators, the volume is same with the"tout"sound and the brightness is same with of LED, you can find the target wire with the highest volume and brightness. This tracker can be used to trace a wide range of cable including telephone wire, computer network cable, TV cable and other weak current electric wires. It is an ideal tool for technicians in installation and maintenance of weak current systems such as communication line and comprehensive wiring circuit. It is applicable to telephone systems, computer networks and other metal wire circuit and fields. What is included: FWT01T Emitter; FWT01R Receiver; RJ11 Telephone Wire;Set of Signal Output Cable; Carrying Bag; Earphone; User Manual