Voltmeter-CT-7-Cable-Tester-VOLTCRAFT-121927-p-The-Voltcraft-CT-7-cable-tester-quickly-and-easily-tests-all-common-computer-cables-for-continuity-short-circuit-open-ends-crossover-incorrect-wiring-etc-An-easy-to-read-LED-display-allows-you-to-test-each-conductor-in-turn-manually-or-automatically-so-that-you-can-check-for-multiple-ground-connections-incorrect-crossed-connections-or-detect-breaks-in-the-wire-p-VOLTCRAFT-CT-7-Cable-Tester