Manageable Network Cable Tester

Keep your network running smoothly by testing your cables to uncover problematic shorts, open wires, crossing pairs and other wiring mishaps use for testing your homemade ethernet patch cables to make sure they are in working order prior to connecting to your devices tests twisted-pair straight & crossover cables: rj45, rj11 telephone cables and network cables 9 led lights to indicated wiring connection on both remote and master unit. hand-held for portability requires one 9-volt battery (not included)