Network Cable Tester Rj45 Rj11 Rj12 Cat5 UTP LAN Networking Tool(White)

1) Quickly and easily checks network cables

2) Checks open and short terminals, straight through or crossover wiring types

3) Ideal for 1.T enthusiasts who with to make their own network cables

4) Operates from a single 9V PP3 battery (not supplied)