... 3.pass the CE and ROHS best hunting line tester , circuit line tester , electric line tester NS-DX Series Digital Muti-function ... the cat5, 5 E, 6 E, 7 E, coaxial cable, telephone line fault of the connection, including: open, short circuit, cross connect ... D8) distal identify instruments audio reminders13.supporting portable digital audio line found machine (NS-DX-LR), convenient search and testing ...