ProsKit NET-MT-7064 PoE Network Cable Tester (Up To Dc 48V)
Compatible with RJ-45, RJ-12, and RJ-11 connectors, this tester automatically checks cables for continuity, shorts, opens, and crossed wire pairs. It also easily identifies IEEE 802.3 af/at PoE standards, including Midspan and Endspan configurations. Powered by a 9V battery.