Generic Cat5 Cat6 LAN Cable Tester Telephone Line Network Ethernet Wire Tracker Scanning Detector Phone Generator Diagnose Tool Kit Automatic efficient scan for the miss wiring, disorder cable, open and short circuit TEL BNC test available(Adapter needed) Tracks the cables or wires, and diagnose the break point Judges continuity of the cables or wires Receives the tone signal on the cables or wires (telephone line) Identifies the state in the working telephone line (clear ring, busy) Sends a single solid tone or a dual alternating tone to the object cables or wires