The cable continuity tester series includes a variety of different products, mainly testing cable faults for different cable types. such as NF-468 can test RJ11 and RJ45 continuity conditions, including short circuit, cross, open circuit. NF-468B adds a new test of Coax cable continuity. Products for BNC wire continuity also include NF-3468 and NF-468N. The 4 in 1Cable Tester tests 4 common LAN and Computer cables . It tests installed cables or patch cords with RJ-45 , RJ-11 , USB and BNC connectors . PoE Tester is designed to detect power over Ethernet ( PoE ) voltage via twisted pair cable . The tester is able to differentiate between mid-span ( 4 / 5 / 7 / 8 ) and end-span ( 1 / 2 / 3 / 6 ) PoE. Beside, it can also test power, current and voltage of powered devices.