Widely used in: sugar, food, fruit, beverage and other industries. Multifunctional refractometer, with 0 ~ 32% Brix, perfect detection of sugar content, helpful for product quality management, factory inspection, sweetness classification, etc. Specification: Function: sugar content test Provides micro screw hand manual calibration Automatic temperature compensation (compensation) range: 10C to 30C (50F to 86F) Base temperature: 20C packing list: 1*Screwdriver 1cleaning cloth 1 x drinking straw 1*Refractometer box Features: The refractometer is designed according to the principle that liquids with different concentrations have different refractive indices. It is fast, accurate, light in weight and small in size. How to use: Open the cover (3), and carefully wipe the detection prism (2) with a soft cloth. Take a few drops of the solution to be tested, place it on the detection prism, and gently close the cover to avoid the generation of air bubbles, so that the solution spreads over the surface of the prism. Aim the light inlet plate (3) of the instrument at the light source or a bright place, observe the field of view through the eyepiece, and turn the eyepiece adjustment handwheel (6) to make the blue-white boundary line of the field of view clear. The scale value of the dividing line is the concentration of the solution.