RJ45 Cable Tester Network Cable Tester Ethernet Wire Test Tool for LAN RJ45 RJ11 RJ12 Cat5 Cat5e Cat6 Cat6a Cat7 UTP/Shield Cable. (battery not included,require 1 piece 9V 6F22 battery). Gold-plated Shielded Socket-This RJ45 cable tester uses a gold-plated shielded socket, which will not rust, has stronger oxidation resistance, is more resistant to plugging and has a longer service life.
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