Product Description Measuring Range:0-40 Sugar 0-25 Alcohol (%) Grid Value 1 (%) Minimum Scale: 0.2% Dimensions: 30x40x170mm EASY AND QUICK MEASUREMENT: The refractometer only needs 2-3 drops of solution, you can get accurate readings faster and easier, simple to use without wasting solution SUGAR CONTENT MEASUREMENT: meter designed to measure sugar content control sugar in food, juice and beverage production, monitoring the ripeness of growing fruits and vegetables as well as for laboratory research DURABLE AND PORTABLE: The sugar refractometer is made of aluminum and ABS rubber, sturdy in design, rustproof and resistant to abrasion and corrosion. High refractive index optical lens provides accurate measurement.Easy OperationJust need 2-3 drops of solution, you can get accurate readings. Ideal for home brewing, wine making, farming, gardening and educational purposes. Note: The data is all measured manually, please allow 1-3cm error, due to the difference in light and temperature. display, there will be a certain color difference, the actual object received shall prevail.