The Rudolph Research Refractometer, Automatic Density Meter, Autopol Polarimeter, and Saccharimeter, products are used Globally by more than 5,000 customers, in over 80 countries around the world. Our instruments are utilized in the most demanding Pharmaceutical, Chemical, University, Petroleum, Sugar, Food, and Beverage Laboratories.

Quality, Integrity, and Innovation with a Global Reach for over 50 years is reflected in all aspects of our business, including instrument manufacturing, sales, and service support. We incorporate these principles into every Refractometer, Density Meter, Polarimeter, and Saccharimeter we manufacture.

Thus, Rudolph Research has established itself as a premier analytical instrument manufacturer, well known for its quality, reliability and is NVLAP certified. Our Global Network of Business Partners allows us to serve Laboratory Customers anywhere in the world they choose to do business. Our Service department offers maintenance support, calibration services, and replacement parts for all our instruments. We support all our products for the life of the instrument with many instruments manufactured over 30 years ago, still in service today.

Customers choose our Autopol line of Polarimeters, Saccharimeters and accessories, our J Series of Automatic Refractometers and our DDM 2900 Series of Density Meters for accuracy, reliability, durability, performance along with our commitment to superior technical and service support. Please read through our testimonials and request an instrument user list to learn why so many demanding laboratories have selected Rudolph Research.

No matter what the application, Rudolph’s refractometer, polarimeter, density meter, saccharimeter, and accessory line can meet your laboratory’s needs for accuracy, reliability and performance.

Rudolph Research Analytical Downloads

AUTOPOL - Model I - Automatic Polarimeter Brochure

Model DDM 2910 - Digital Density Meter Brochure

Model J57 HA - Digital Refractometer Brochure

Model DDM 2909 - Automatic Density Meter Brochure

DigiPol - Arago Refractometer- Brochure