Network Cable Tester HT812A LAN Cable Finder RJ11 RJ45 Master And Remote Set Alignment Meter Line Tracker Detecter Features: 1.Multi-channel network telephone cable tester is used to test your self-made Ethernet patch cable or telephone cable to ensure that they are in working condition before connecting to your device 2.The cable tester for RJ11/RJ12/RJ14 telephone line and RJ45 LAN cable is used to find faulty short circuit, open circuit, cro pair and other wiring faults 3.Easy to use and carry: automatically run all tests and continuity checks, LED status display. Slow and fast test switches. Small and compact, with high-quality soft leather case, easy to carry 4.1 Power supply modes: two 1.5VAAA batteries are required (not included) 5. Low battery display, automatic shutdown function, anti-burning. Parameters: Product name: telephone network cable on-off detector Size: 96 * 62 * 24 Color: black Power supply: two 1.5VAAA batteries Weight: about 71g Package include: ethernet tester * 1 Instruction * 1