Use these Brix refractometers to measure concentration of fruits, beverages, and canned goods; total solid content of syrups, vinegar, and sauces; or check the quality of vegetable, fruit, and grass tissues. Refractometers can also be used for chemical, agricultural, manufacturing process control, quality control, preshipment, and other applications.Brix Refractometers feature a screw potentiometer for calibration and easy-to-read numbers on internal scale for excellent resolution. Models with automatic temperature compensation (ATC) are perfect for applications where the temperatures of your samples vary.