RF15: Portable Sucrose Brix Refractometer with Automatic Temperature Compensation The Extech RF15 measures the concentration of sugar in fruit juice and industrial fluids from 0 to 32 percent Brix, with a maximum resolution of 0.2 percent Brix and automatic temperature compensation. It only requires two or three drops of solution, and the prism and lens with focus adjustment provides simple, repeatable measurements. The RF15 comes complete with carrying case and calibration screwdriver. Applications: Monitor and control sugar concentration in foods and beverages, control the concentration of industrial fluids and cutting lubricants to extend equipment life and prevent corrosion. Comes in a hard plastic case. National Industrial Supply 32483 Temecula Pkwy, Ste #E112 Temecula, CA 92592, USASales 310.748.6858 Fax: 310.733.5480 WE PREFER PAYPAL!