1, Cable Tester 4 in 1 for UTP STP RJ45, RJ11 RJ12, BNC & ... ,CE,RoHS certificate Brief Description:This 4 in 1 Cable Tester tests 4 typical Phone, LAN and Computer cables. It tests ... cable or reverse wired telephone cables.This network cable tester is an ideal tool for testing the Continuity, Miswiring, Open, Short, Cross ...