DESC: DTX Series testers also give you Level IV Accuracy, unmatched troubleshooting diagnostics, 900 MHz of testing bandwidth, 12-hour battery life, and nearly instant set-up and reporting. The DTX-1200 and DTX-1800 perform Cat 6 certification test in just 12 seconds, all in full compliance with the industry standards and with superior accuracy. That's three times faster than existing testers. This incredible speed means you can test up to 170 more links in an eight hour shift. When a link fails, the DTX Series provides quick and easy-to-understand directions to identify the point of failure (distance from the tester) and the possible reason(s) for the failure.