Quick and easy check for cable continuity, miss-wiring, Open, short, straight-through or cross pinning whatever the cable was installed or not. It can test corresponding double - twisted cable 1, 2, 3, 4, 5, 6, 7, 8 and G.
Purchased this tester to replace the unit that was in the kit that I had purchased. The kit tester was giving failures on cables that I had made when I knew the RJ45 end and the keystone end were properly fitted. This new tester gives accurate results and has saved a lot of effort in re-doing ends that were properly crimped and punched down in the first place. Recommend this product.