Display test result on large LCD for easy reading and cable status identification. The wire can be tracked directly in connection with Ethernet service, router, and PC terminal. Validate and troubleshoot wiring on RJ11/RJ45 cables, Coaxial cable, USB cable, IEEE 1394 cable. Test cable status for continuity, shorts, opens,miswired, crossover. 9 different tones selection for convenience use under different environment condition. All installation and maintenance fields of telecommunication, networking, cable TV and more.