Analog Refractometer, Brix, Range 0 Percent to 32 Percent Brix, Accuracy +/-0.2 Percent, Resolution 0.2, Function Measures The Concentration of Sugar In Fruit Juice, Features Calibrated to Sucrose Content Contained In 100 g of Cane Sugar, Easy to Operate with Simple to Read Scales, Prism and Lens with A Simple Focus Adjustment Provides Repeatable Results, Requires Only 2 or 3 Drops of Sample, Length 6 1/2 in, Width 1 in, Height 1.5 in