Cable Tester (JIB/CT) was designed to test cables quickly and simply. The CT tests 6 different types of cables, XLR, 1/4", RCA, 1/8", Speakon, and DIN (Midi). The CT features a specially designed microprocessor, which tests a cable 200 times per second. A simple 'Pass/Fail' indicator lights up when you plug each side of the cable into the CT and select the number of conductors of the cable.