Anti-interference network cable tester: using advanced digital/analog/POE mode, high sensitivity, low noise interference, easy to accurately locate the target cable, widely used in engineering wiring, network and equipment maintenance Optical power meter test & port flashing: Connect the network cable to be tested to the transmitter, the wired controller will automatically detect the optical fiber frequency, and the port indicator light will flash on the same screen, which can display the working speed of the port, which is convenient to accurately locate the line and port. Multifunctional network cable tester: nine functions to meet your needs. Continuity test, cable scan, port flash, length measurement, POE power test, QC test, optical power meter, VFL function and NVC function. PoE test: The PoE test can check the cable mapping polarity and voltage of the PoE network switch, which can withstand 60VDC. Automatically detect and switch between 10M/100M/1000M modes. Includes cable tracing, short circuit testing, circuit interruption testing, and more Cable length test: RJ45 RJ11 cable tester can quickly measure the cable length within 200m. Not only network cables, but also phone cables and BNC cables. Material: plastic colour: As shown Package Contents: 1 x cable tester Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.