Brix Refractometer for Measuring Sugar Liquid with Brix Refractometer with Automatic Temperature Compensation, Specific Gravity! -- 3 scales for Measurement in America, Europa and Asia: 0-32% Brix ( MAS Sacch); 0-140 Oe; 0-27 KMW (Babo) -- Measurement is easy: Place a few drops of the liquid on the optical part of the refractometer, cover the prism, and the liquid will spread more easily over the prism, look throught the eyepiece against the light and you will be able to read the result value on the scale. 10℃~30℃ / 50F ~ 86 F. For temperature beyond this range, please calibrate before use. -- Includes: a firm plastic case, 1x refractometer ,1x cleaning cloth, 1x suction tube, 1x screw driver, 1x operating instructions -- 2 Years Warranty by simply contacting us via Amazon purchase history