Refractometer à¤Ã×èͧÇÑ´¤èÒ¤ÇÒÁËÇÒ¹ HI96801 Take Your Measurements to the Next Level The HI 96801 Digital Refractometer is a rugged potable, water resistant device that benefits from HANNA’s years of experience as a manufacturer of analytical instruments. The HI 96801 is an optical instrument that employs the measurement of refractive index to display the sugar content in samples. The measurement of refractive index is simple and quick. Samples are measured after a simple user calibration with deionized or distilled water. Within seconds the instrument measures the refractive index of the sample and converts it to % Brix concentration units. The HI 96801 digital refractometer eliminates the uncertainity associated with mechanical refractometers and is portable for measurements in the field.