Cable Tester for RJ12, RJ11, RJ45, Cat 5e, Cat 5, 10/100 Base-T, ... A, TIA-568A/568B .etc Lan network cable tester RJ11,RJ12,RJ45 cat5e Network Cable Tester 100% New. Test correspondingly double ... judge wrong connection, short circuit and open circuitCable Tester for RJ12, RJ11, RJ45, Cat 5e, Cat 5, 10/100 Base-T ... x 100 x 25mmWeight:124g Lan network cable tester RJ11,RJ12,RJ45 cat5e