Lab Digital Refractometer - ProgrammableThis programmable refractometer comes preloaded with the commonly used Brix (0 to 88%) and nD (refractive index) scales. In addition you may create your own custom scales. An unlimited number of scales can be stored in the softwares database. Transfer these from your computer to the three numbered display positions on the Programmable Refractometer using the built in USB computer interface. Scales can be loaded and unloaded from your database to your