J27 D тАФ Dedicated Power. Laboratory Accuracy. Continuous QC.
Mid level performance at an entry level price.

The J27D Automatic Refractometer is engineered specifically for quality control laboratories where ease of use and long-term repeatability are the highest priorities.

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Measure Density, Specific Gravity,
Refractive Index, BRIX, Color, and pH utilizing
the R837 Automated Laboratory Sample Handling System.

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тАЬтАжthe biggest difference IтАЩve seen having the
AUTOPOL 880 is how stable the
readings are even with dark samples.
There is no guessing the final answer.тАЭ

тАУ Arnel Negranza, Chief Chemist, Western Sugar, USA

View all Saccharimeter Models

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Refractometers Digital, Benchtop
for High Accuracy Laboratories testing RI, BRIX

Explore our Refractometers and Features

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Density Meters for Chemical,
Petroleum, Pharmaceutical,
Petro-Chemical, and Beverage Labs

View Density Meter Applications

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Polarimeters for pharmaceutical, chemical,
sugar, cosmetics, essential oils, education
and university labs from industry leader,
Rudolph Research Analytical

Our full line of Polarimeters

VeriLinkRx┬оfor Narcotic / Drug Diversion Testing

Drug Diversion Testing Solutions
VeriLinkRx┬о Closes the Broken Link
in your Narcotics Chain of Custody Program

VeriLink for Drug Diversion Testing

Alcotest┬о RI

Alcohol Proof testing for Distilleries, Breweries
and Wineries. Measure Alcohol Proof, % Alcohol
v/v for Straight or Obscured Spirits.

More info about Alcotest

VeriILinkRx┬о

VeriILinkRx┬о

SUGAR AUTOMATION SOLUTIONS

SUGAR AUTOMATION SOLUTIONS

Handheld Density and Refractometer

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Lehrkinds Inc. is a co-packing company that has been co-packing with Buffalo Trace Distillery for the past 2 years producing a malt liquor beverage nationwide. With high demand for the malt beverage, we needed to come up with a faster turnaround time to keep up with sales. We reached out to Rudolph Research Analytical and [тАж]

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Hi Dana, Wonderful to meet you! YouтАЩre correct, we have quite a few Rudolph refractometers. We have had great experiences with them, and when my groupтАЩs ancient J257 lost its backlight we went straight for the J357 as a replacement without considering other manufacturers. I havenтАЩt heard anything negative about our Rudolph refractometers thus far; [тАж]

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At Copper Fox Distillery, precision and quality are at the heart of our craft, and AlcoTest┬о by Rudolph Research Scientific has been a game-changer for us. The AlcoTest┬о equipment provides incredibly accurate and reliable results, ensuring our products meet the highest standards of excellence. Its user-friendly interface and fast processing time have streamlined our testing [тАж]

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Hi Larry, As a small distillery, this was a big investment, however, the reduced proofing cycle times and increased accuracy have reduced our costs such that it is paying for itself. We were also entirely unfamiliar with sophisticated lab equipment such as this.┬а The Rudolph Research teamтАЩs quick response times and willingness to help have [тАж]

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Octapol

Octopol Now Available

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3 Year Warranty

3 Year Warranty

Beginning in 2026, Rudolph Research Analytical will offer the longest warranty available in the laboratory instrumentation industry тАФ up to 3 years on qualifying laboratory measuring instruments. This expanded warranty builds on what already sets Rudolph apart: our industry-leading 20-Year Support Guarantee. Together, they deliver unmatched protection, long-term value, and confidence that no other manufacturer [тАж]

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Showcasing Excellence at CPHI We are proud to announce that RudolphтАЩs distributor in China, DKSH, has been awarded 2025тАЩs Most Innovative Product at the CPHI Conference in Shanghai. The award recognizes portable instruments including Refractometers and Density Meters. CPHI China is a top pharmaceutical event in Asia, uniting global manufacturers, suppliers, and innovators in one [тАж]

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