Test correspondingly double-twisted cables 1, 2, 3, 4, 5, 6, 7, 8 and Ground
Capable to judge wrong connection, short circuit and open circuit
Cable Tester for RJ12, RJ11, RJ45, Cat 5e, Cat 5, 10/100 Base-T, AT&T 258 A, TIA-568A/568B .etc
It can easily clarify cable, continuity, open and short.
Verifying Cable continuity, open, short and cross wire pair up to 1000ft with remote kit.
9 LED lights to indicated wiring connection on both remote and master unit
Build in power switch for power saving
Power: 9V battery ( Not Included )