1, Cable Tester 4 in 1 for UTP STP RJ45, RJ11 RJ12, ... ,RoHS certificate Brief Description:This 4 in 1 Cable Tester tests 4 typical Phone, LAN and Computer cables. ... cable or reverse wired telephone cables.This network cable tester is an ideal tool for testing the Continuity, Miswiring ... 45, RJ-11, USB and BNC)2, Simple one button test3, Fast speed testing4, Ergonomic portable handheld design5, Test ...