1、Easy Testing: Anti interference and noise free on load line searching, capable of searching for network cables, telephone lines, BNC coaxial lines, and various metal wire receivers. Sensitivity adjustable from 0 to 0.5 meters, capable of searching for lines. 2、LED Indicator: Port flashing function, quickly find the corresponding wire head of the switch by observing the flashing frequency of the LED lights on the switch and router. 3、Wide in Utility: Cable continuity test, which can test the open circuit, short circuit, crossover, and crosstalk of network cables, telephone lines, and BNC coaxial lines. 4、Great for Wiring: The testing can detect packet loss in both local and external networks, automatically obtain IP addresses, or manually modify IP addresses to complete network installation and layout. 5、Simple Carrying: Comes with a compact size and a light weight as well, the network cable tester is very convenient to carry for outdoor work.