1,Network Cable Tester for UTP STP RJ45,RJ11,RJ12 2,UL,CE,RoHS ... Size: 105 x 100 x 25mm 2, Weight:118g 3, Test correspondingly double-twisted cables 1, 2, 3, 4, 5, ... wrong connection, short circuit and open circuit 5, Cable Tester for RJ11, RJ12, RJ45, Cat 5e, Cat 5, 10/100 ... unit 9, Auto scanning function for rapid testing. 10, Grounding Test 11, Build in power switch for power saving 12, Operate with ...