NF-8601S, upgrated from NF-8601, provides full cable testing on different category network, coax, or telephone cable. The intelligent wiremap' feature tests for length, shorts, split pairs, or opens and displays with an intuitive graphical interface where a fault is located. (usingTDR techonology:Time Domain Reflectometry). Besides, finding cables easier and tracing with AC fliter, or locating network port using port flash feature. It can also test the presence of PoE and PING functions. all these make it a must tool for each network technicianAs a star among the whole product range, NF-8601S implementing TDR technology, which makes it to be one of the best and most accurate cable length tester in the market. PoE testing and Ping testing function expand it's application scenario.