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 ... crossover indications9, RJ-11 / RJ-45 are equipped with 50u gold plating10, 300 feet test distance (RJ-45 / RJ-11 ...