Black Box Corporation
Black Box Cable Length Meter
The Cable Length Meter is an easy-to-use, versatile, compact tester for industrial type or pair cable. Use it for measuring cable length or as a tone generator. The meter troubleshoots new or existing lines by measuring distance to shorts or opens, and shorts between lines. It also traces wires by generating up to four trace tones. It works on virtually any single- or two-conductor cable (not CATx) and enables users to find and repair existing cable problems or verify new installations quickly.