Cable Tester Test Tool RJ45 RJ11 RJ12 CAT5 CAT6 UTP USB LAN Wire Ethernet3223
£8.24
4-5-6 ------------RJ12. It is used to test your self-made Ethernet wiring cable to make sure it works normally before connecting to your device. If all cables are available, the light change from NO.1&2 to green.
