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.
๐ Johnson Level and Tool 400EM-S 12-Inch Heavy Duty Metal Combination Square for Professionals, with Inch/Metric Measurements, Silver - 1 Square
8 Review
Kapro - 353 Professional Ledge-It Try & Mitre Square - For Leveling And Measuring - Features Stainless Steel Blade, Retractable Ledge, And Etched Ruler Markings - 12 Inch
23 Review
โ Stainless Steel L-Square, Size 3-Inch x 4-Inch, Zona 37-434
8 Review
Kapro 307-08-TMS Try And Mitre Layout And Marking Square With Stainless Steel Blade, 8-Inch Length
18 Review