Description:This Cable Tracker is designed to identify and trace wire or cable within a group without damaging the insulation. For telephone line, it can identify some states in the line. Owning this instrument, it is more convenient to install, debug, and maintain telephone line. There are a Sender and a Receiver included in the Cable Tracker.Features:1. Judge continuity of the cables or wires.2. Track the cables or wires, and diagnose the break point.3. Receive the tone signal on the cables or wires (telephone line).4. Identify the state in the working telephone line (Clear, ring, busy).5. Send a single solid tone or dual alternating tone to the object cables or wires.Specification:Color: YellowPackage Weight: 245gPackage List:1 x Cable Tracker Sender with RJ11 Cable1 x Cable Tracker Receiver1 x User Manual