1.cable tester 2.For UTP/FTP - 4 & 2 pairs lan cable 3.For telephone line cable Design for the testing of the UTP and screened for the opens, shorts, reversals, mis-wiring and so on, this testers allows one person to quickly test and identify up to different hour runs from the one locations .This ethernet cable tester quickly and easily checks for cable continuity, mis-wiring, open, short, ...