The continuity tester is a handy adjunct to an ohmmeter. The unit or component whose continuity is to be checked is connected between terminals E1 and E2 (which may be probes or croc clips). The test ...

The chief engineer is on vacation, but he asked me to see if I could pick something up to check the fiber lines we have run-some don't appear to be labeled correctly, or are possibly faulty. But ...