This RJ11 RJ45 Network Cable Tester can judge wrong connection, short circuit adm open circuit.Put cables into both main Cable Tester and remote tester. The lights of the main tester will turn on sequent from 1 to G.Network Phone Cable Tester powered by DC 9V battery ( not included ).Attention: this tester should not be used to test any electrified product, or it would be damagedAs to the LED indicator not being bright, maybe the battery has run out and then please change the battery to have a try.
Product Name : Network Phone Cable Tester;Size : 10.3 x 10 x 2.7cm/ 4" x 4" x 1"(L*W*T)
Model : ST-45;Ports : 2 x RJ45 and 2 x RJ11
Power : DC 9V, Battery (not included);Material : Metal, Plastic
Color : Gray, Green;Net Weight : 150g
Package Content : 1 x Network Phone Cable Tester1 x Carry Bag