Green Lee-802K-Digital-LAN-Tracing-Kit-Cable-&-Lead-Finder-Greenlee-52025322-P-The-Greenlee-Tempo-802K-Digital-LAN-Tracing-Kit-is-a-communication-wiring-tool-that-can-trace-high-performance-cables-such-as-Category-6-&-is-immune-to-AC-power-noise-P-P-The-802K-Digital-LAN-Tracing-Kit-contains-the-industry-standard-200FP-Filter-Probe-which-is-designed-to-eliminate-hum-from-fluorescent-lights-&-AC-power-wiring-that-can-obscure-tracing-tones-It-features-AC-hum-filtering-a-bright-LED-