Green Lee-NC-100-Cable-&-Lead-Finder-Digital-Data-&-Video-Wiring-Tester-Greenlee-52024541-P-The-Green Lee-NC-100-Cable-&-Lead-Finder-is-a-device-that-verifies-the-integrity-of-both-twisted-pair-&-coaxial-telecom-cables-It-uses-high-speed-digital-technology-to-verify-wiring-continuity-&-check-for-the-correct-allocation-of-wire-pairs-showing-the-results-on-a-backlit-display-Four-durable-keys-select-the-test-&-wire-tracing-modes-P-P-A-wide-range-of-tracing-tone-options-makes-it