The PHCT70 Network Cable Tester is a powerful tool for testing everything from Cat 5, 5e, 6 Network/Telephone to BNC coaxial and other cabling. You'll be able to test installed cabling for short circuits, open circuits, continuity, wiring pattern, and cable length. This device makes it possible to test any number of cables all by yourself. You can even measure cable length and recognize pairs without the Far-end Port. You'll have the option of calibrating the length tester so that you know you are getting the right measurements. With WIREMAP, save time and money by knowing you got it right the first time.