Length measurement for conductive cables of all kinds. The CableTool is a length measuring device for all types of cables such as network, antenna, data, or power cables. The full-fledged reflectometer function (Time Domain Reflectometer) determines total cable lengths or the distances to a fault point (break or short circuit). With the voltmeter function, active lines can also be detected and the applied voltage displayed. Additionally, the CableTool features a built-in cable tracing function. A tone signal is sent into the cable, which can be located with a probe. Fully functional copper reflectometer (TDR) up to 700 m. Measures cable length or distance to the fault point. Built-in voltmeter. Length measurement for all lines such as power, antenna, and network cables. Delivery includes: tester, 2 test leads with alligator clips, carrying case, 4 AA batteries.