Features Multi Function: With RJ45 and HD multimedia interface, can intelligently detect the on off, crossover and short circuit of computer network cables and high definition data cables. Split Design: The main tester and remote tester can be separated, allowing long distance inspection, up to 100 meters. Easy to Operate: Turn on the switch, plug in the cable, if the test lights light up in sequence, indicating that there is no problem with the line connection. Excellent Components: Interior adopts excellent components, with high sensitivity and great stability, has long last high performance. ABS Shell: The cable tester is compact and light, easy to carry, adopts high strength ABS plastic shell, strong and sturdy, not easy to damage. Specification: Item Type: Network Cable Tester Material: ABS Battery: 1 x 9V 6F22 battery (without battery) Purpose: Can measure the on off, crossover and short circuit of the network cable or telephone line Basic Parameters: Interface: RJ45, HD multimedia interface Package List: 1 x Network Cable Tester 1 x Manual Package List 1 x Network Cable Tester 1 x Manual