Cable Tracker Tester Profeional Line LAN Telephone Wire Tracer Breakpoint location with Voltage Detector Line Finder Features: 100% Brand new and high quality Perfect for installing, debuging, maintaining telephone line and other wires or cables. Detect continuity of the cables or wires without damaging the insulation Track the cables or wires, and diagnose the break point. Receiver the tone signal on the cables or wires (telephone line). Identify the state in the working telephone line (clear, ring, busy). Send a single solid tone or a dual alternating tone to the object cables or wires. Include a sender and a receiver A profeional & safe tool for wireman. Power supply: 9V Battery (Not Included)