Noyafa NF-8601S TDR Cable Tracer Tester with PoE Ping for RJ45, RJ11, BNC, Metal Cables - CAT5 6 7 tester, TDR test: With TDR technology, 500m max (1640ft) length measurement for RJ11, RJ45, Coaxial, and power cables (only 2% error!). When faults exist, the NF-8601S TDR meter displays the distance to the fault, Ethernet cable tester, Network toner: Toner probe with complete AC interference rejection to trace ethernet cables. Three modes are available for fast and accurate cable tracing: high frequency PoE switch low frequency, Port blinking, Ping test, Non-Contact Voltage Tester: Toner probe with NCV detector (90-1000V). One tap to tell if electricity runs through an object without touching it Više informacija na linku