Check the listing for details. Sperry Instruments TT64200 Cable-Test Twisted Pair Ethernet Network Cable Tester. Color: Yellow, Condition: New. Listed at 55.00 USD. This was used for a display at one trade showNew, never used Verify twisted pair wiring installation, including 10Base-T and Token Ring configurations.Quick detection of opens, shorts, miss-wires, reversals and split pairs in UTP/STP cabling for T568A, T568B, 10Base-T, and Token Ring configurations. Includes a debug function tp pinpoint error type and location.Test RJ45 and RJ11 cabling in 4-, 6- and 8-pin configurations easily and accuratelyTests patch cables or in-wall wiring with two included jumpersCatch crossovers on CAT 3, 5 and 6 installationsSelector for standard or crossover cablesTester and remote snap together for transportation and storage when not in useWiring reference chart includedAuto-off saves battery use