Refractometer, Density Meter, Polarimeter, and Saccharimeter Laboratory Instrument Manufacturer.
The Rudolph Research Analytical Refractometers, DDM Automatic Density Meters, Autopol Polarimeters, and Saccharimeters, are used globally by more than 8,000 customers. Rudolph is represented in over 80 countries around the world. Rudolph also manufactures the AlcoTest®RI instrument to Measure Alcohol Proof Obscuration. The VeriLinkRx® is Rudolph’s instrument for Drug Diversion Testing when drug waste needs to be monitored. The DDM 29 Portable Density Meter and J27 Portable Refractometer, both of which offer electronic sample temperature control. Sample Handling may be fully automated using one of Rudolph’s laboratory Automated Sample handing systems is
Our instruments are utilized in the most demanding Pharmaceutical, Chemical, University, Petroleum, Sugar, Food, Distillery, and Beverage Laboratories. Rudolph holds itself to the highest industry standards and enjoys a variety of ISO and AL2A Accreditations. We offer all our instruments with industry application-specific accessories, support, and automation options to ensure your sample measurement requirements are met. Our Product Managers and engineers have worked with difficult applications across a wide range of industries. We can help you select an instrument or system to meet your exact requirements.
Quality, Integrity, and Innovation with a Global Reach for over 50 years are reflected in all aspects of our business. This includes instrument manufacturing, sales, and service support. We incorporate these principles into every Refractometer, Density Meter, Polarimeter, Laboritory Automation System, and Saccharimeter we manufacture.
Thus, Rudolph Research has established itself as a premier analytical instrument manufacturer. Rudolph is well known for its quality, and reliability. 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.


