WARNING!!!
Therefore, the packaging erroneously indicates that this tester is capable of testing HDMI, Coax, and RJ12 cables, which it is not designed to do. In step mode the tester steps through each wire independently with each press of the Test button. Monoprice Quick RJ-45 Network Cable Tester Also note that the manual for this tester shows test results for RJ12, Coax, and USB cables.