BSIDE Multi-functional LCD Network Cable Tester Wire Tracker RJ11 RJ45 Wire Network Cable Finder

Features:
Can test telephone wire, network wire, power cable.
Can test the line level, positive and negative polarity by using emitter only.
Equipped with RJ11 cable and with BNC/RJ45 interface.
Network wire checking function to judge normal/short-circuit/open-circuit/crossing and reverse connection.
Easy and fast to locate the breakpoint without opening the wire's cover.
Includes low battery indication function.
Protected by a bag, portable to carry.