Review on 🔌 POCKET TONER: Coaxial Pocket Continuity Tester Bundle for Testing and Labeling Coaxial Lines by Jeff Richmond

I bought this because my sister had no idea which wire went to which room in her house. You connect one end to the wire to outside and the end of the beeper to any room (or vice versa) and start testing. Of course, this requires two people (one at each location), but you'll soon be able to label your cables accordingly. I even tested it on 600 feet of coax and the signal went through the line with no issues. Great little tool.