The most accurate refractometer in the world is now even more stylish, smart, and functional. Featuring intuitive touch screen technology, the new RX-i series makes navigation and selection a breeze. The RX-5000i measures with the same accuracy level as the RX-5000 alpha: ±0.03% Brix and ±0.00004 nD. The RX-i series come with newly added functions, such as USB flash drive and self-diagnosis capability.