Features: 1.Line Tracing - This network cable tester helps you find the line from many pairs quickly and precisely. 2.Line Detection - Automatic efficiently scan for the miss wiring, disorder cable, short circuit, broken circuit and other breakpoint. 3.Line Level Test - Use the transmitter to test the line level, positive pole and negative pole of circuit precisely. 4.Telephone Wire Verifying Status - Test the working state of telephone wire of free, ring and busy, and distinguish TIP circuit from RING circuit. 5.Wide Compatibility - The line tracer is suitable for RJ11 and RJ45. specification:Description: This wire tracker is capable of finding out the line breakpoint precisely without opening line cover, including short circuit, broken circuit and overcurrent. It is suitable for RJ11 and RJ45. The line level test checks the positive pole and negative pole before. Furthermore, about 984ft signal transmission distance helps find out the breakpoint in the shortest time. Line Tracing - This network cable tester helps you find the line from many pairs quickly and precisely. Line Detection - Automatic efficiently scan for the miss wiring, disorder cable, short circuit, broken circuit and other breakpoint. Line Level Test - Use the transmitter to test the line level, positive pole and negative pole of circuit precisely. Telephone Wire Verifying Status - Test the working state of telephone wire of free, ring and busy, and distinguish TIP circuit from RING circuit. Wide Compatibility - The line tracer is suitable for RJ11 and RJ45. s: Product type: Telephone Wire Tracker Suitable: For RJ11, RJ45 Height: < 2km IP level: IP 40 Signal transmission distance: about 300m/ 984ft Battery: Transmitter: 6F22 / 9V; Receiver: 6F22 / 9V( not included) Color: Blue Package size: approx. 22.5 * 11.5 * 4 cm/ 8.86 * 4.53 * 1.57 in Package weight: 257g Package List: 1 * Transmitter 1 * Receiver 1 * RJ11 Adapter Cable 1 * RJ45 Adapter Cable