I have a Behringer that's similar to that one. I think yours tests a couple more connector types but I needed one that will send a test tone down a mic line.
Just for fun, here's a unique continuity tester from the 1920s:
It has a chrome case. It was designed to check continuity of fuses, lamps, motor windings, toasters, flat irons, vacuum machines, and anything else you can possibly get across the two contact bars on the face.
When continuity is detected the red dot on the needle moves out of the window on the meter. If the dot does not move the item under test is open. It's powered by a standard 1.5 V C battery. It was sold by Testometer Laboratories, Chicago.