Check the listing for details. MS6812 Cable Tracker Tester Professional Line LAN detector Telephone Wire Tracer. Condition: New. Listed at 49.04 USD. NEW MS6812 REMOTE NETWORK CABLE TESTER 1.5kHz 100-300kH Description FEATURES The cable tracker is designed to identify and trace wires or cables within a group without damaging the insulation. For telephone line, it can identify some state in the line, and more convenience to install, debug, maintain telephone line. There is a Sender (MS6812-T) and a Receiver (MS6812-R) included in the cable tracker. • Judge continuity of the cables or wires • 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 SPECIFICATIONS • Send tone frequency: 1.5kHz • Receive frequency range: 100 ~ 300kHz • Power supply: 6F22 (9V) • Receiver size: 238mm x 43mm x 26mm • Emitter size: 145mm x 35mm x 25mm • Receiver weight: 106g (including battery) • Emitter weight: 114g (including battery) Package including:1 x Receiver1 x Sender1 x Cloth bag2 x 9V batteries (not included)1 x English user guide