Optical Brewing and winemaking tool that allows a quick and accurate measure sugar (Brix). Built out of metal, it offers a rubber grip, comfortable rubber eyepiece, focus adjustment, pipette, calibration screw, and a protective hard vinyl plastic carrying case. Complete instructions with diagrams included. The refractometers are equipped with superior optics, an easy-to-read display, and our 0-32 Brix model has an automatic temperature compensation system - no temperature conversions to worry about! Easy to use and lightweight. Calibration tool included.