DURFICST FWT81 Wire Tracker RJ45 RJ11 Telephone Network Line Tester LAN TV Power Line Detector Cable Collation Continuity Checker with Flashlight

[Multifunctional Line Tracker]: This line tracker can quickly find target line pairs in many line pairs; quickly locate the breakpoint without opening the wire cover; test the line level, positive and negative polarity; test the physical connection status of the network cable; test the status of the telephone line, etc. [Safety Test]: The receiver probe is designed with ABS insulation to protect you from electric shock while increasing sensitivity. [Quick Test]: Effective dual-button switching function; easily finds a single RJ11, RJ45, or other metal wire in a bundle of cables. [Easy to Test]: Hands can operate the transmitter or receiver independently, no need for multiple testers. [Built-in Flashlight]: LED lights also help in low light conditions, as well as low residual power signs, reminding you when it's time to replace the battery.