Portable Automatic Digital ABBE Refractometer Abbe Refractometer is an instrument that can measure the refractive index and average dispersion of transparent, translucent liquids or solids (mainly transparent liquids). If the instrument is connected to a thermostat, the temperature can be measured within 0 ° ~ 70 ° c Refractive index. Refractive index and average dispersion are one of the important optical constants of substances, which can be used to understand the optical properties, purity, concentration and dispersion size of substances. This instrument can measure the percentage of sugar content concentration in sucrose solution (0 ~ 95%, which is equivalent to the refractive index of 1.333 ~ 1.531). Therefore, the instrument has a wide range of applications and is indispensable for the merged factories, schools and research units of the petroleum industry, oil i…