Guildline Instruments 6640T Temperature Bridge is a completely redesigned DCC Bridge to provide better uncertainties, faster measurement rates and more operational capability.The 6640T incorporates a new patent-pending toroid design, low current measurement improvements, new nanovolt meter used as the null detector, very fast processor, new internal communications structure, and new firmware.

Best Accuracy: +/-0.02 ppm of with 1mA of Current across entire SPRT Operating Range
Full 10.5 Digist (0.1 ppb) Display Resolution
Windows 10 touch screen interface