The Data Cable RJ45 LCD Wiremapper makes your data and ethernet cable testing faster and simpler. Designed exclusively for RJ45 cables, this tester is a compact and simplified version of our popular 33-856 VDV Tester. The bright, backlit LCD screen displays Pass/Fail status as well as pin-by-pin errors like opens, shorts, miswires, and split pairs. A built-in tone generator with three tones helps you find cables in crowded bundles, while the self-storing detachable remote makes it easy to test long runs. With the push of a button, you can easily switch between testing, toning, and power options. For verifying wiring and continuity of low voltage and data communication cables, this tool helps you get the job done right.