1, fast, high-precision high-definition display 2, Temperature automatic compensation, reduce the error caused by temperature, improve the measurement accuracy 3, purpose, use of the scene: food, fruits and vegetables, beverages, automotive, chemical, etc., rapid measurement of the concentration of a variety of liquids 4, The digital refractometer is a digital high-precision optical instrument designed by the principle of refraction. It is small and beautiful, easy to use, and LCD large-screen digital display. As long as a drop of sample solution is placed on the prism, the measured value will be displayed within 3 seconds, which avoids the subjective error numerical interpretation. 5, Professionally measure the sugar content of water samples, food, fruits and crops, widely used in food industry, beverage industry, agriculture, agricultural food processing industry, etc.