Our network cable tester pro Test for wiring faults of open, short, reversed, crossed and split pairs. Our tester works great for split pair fault detection at a minimum 40 cm cable length. It is also one of the best testers for finding out the verification of shield integrity. Included is a specially designed remote unit that easily allows one person to test installed cables. network cable tester pro has a easy to read fault display and is a great for high speed testing. This tester makes debugging simple with the Debug mode for detailed fault identification results. This tester comes with a auto sleep mode and power off switch to help decrease power consumption. This network tester also has a easy to see low battery indicator to let you know when your battery is running low. Tone generator features allow the user to easily identify a good and bad connection (single tone or multi-tone signal).