You see a useful and compact tool for diagnosing coaxial cables. It will help you find and check the cable connection, for example in your home, office or car. The main function is to determine the integrity of coaxial cables such as RG6, RG59 and CATV. If you have many similar cables coming from different rooms, this tester will help you easily identify which one is connected to the correct output. It is even possible to trace cables through obstacles such as ceilings, floors or walls. Thanks to the audible alarm and light indication, you can trace the cable route without relying on visual inspection alone. The tester requires a AAA battery for power. The Coaxial Pocket Toner is a convenient, portable and functional tool for working with coaxial cables.