The handheld CT20 local/remote continuity tester comes with a red/green LED remote probe that lets a single user check continuity over a long cable run. The tester attaches to one end of the ...
All it takes is a kink in the cable, somebody running over it with their office chair, or a poor crimping job on one end (like leaving way too much wire untwisted) to make the cable not work. I'd ...