Rudolph Research Analytical's line of Refractometer, Polarimeter, Saccharimeter and Density Meter instrumentation and accessories are used in many industries, including the pharmaceutical, chemical, petroleum and food industries. Quality, Integrity, and Innovation for over 50 years is reflected in all aspects of our business, including manufacturing, sales and service support. Customers choose our Autopol line of Polarimeters, Saccharimeters and accessories, our J Series of Automatic Refractometers and our new DDM 2911 Density Meters for accuracy, reliability, durability, performance and our commitment to superior technical and service support.