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For elevated athlete testing


From monitoring compliance with anti-doping regulations to boosting athletic performance through optimum hydration, the SmartRef is the ideal assistant for measuring urine concentration for athletes.

In combination with the mobile app Lab Meister, the SmartRef Digital Refractometer determines urine specific gravity and allows you to instantly save, manage, and export measurement data for later reference.

Human urine specific gravity determination with the SmartRef Digital Refractometer and the Lab Meister mobile app

With a small sample volume of only 0.4 mL, the SmartRef delivers accurate results - already temperature-compensated:

  • Human urine SG 20/20 [USG Human]
  • Refractive index current temp. [nD]
  • Temperature [°C], [°F]
View all specifications

Athletic performance: Push further by balancing your hydration levels

Maintaining a good hydration balance is crucial for athletes to optimize performance, prevent injuries, and ensure overall well-being. Proper hydration affects various physiological functions essential for athletic performance, such as temperature regulation, cardiovascular efficiency, and muscle function.

SmartRef Digital Refractometer for Athletic Testing to find the perfect Hydration Level

With the SmartRef Digital Refractometer, you can monitor your hydration status effectively before and after training sessions by measuring urine specific gravity (USG). The SmartRef provides a quick and accurate USG reading. Connected to the Lab Meister mobile app, results can be easily stored, visualized and exported for later reference.

It is best to evaluate your optimal value range with your trusted physician and subsequently take regular measurements to monitor your USG values.

Go smart with the SmartRef, stay ahead and push your limits!

Setting new standards in athlete anti-doping control

With the amended anti-doping testing procedure, which came into force on January 1, 2021, the limits for urine specific gravity under the World Anti-Doping Code have changed.

When using a digital refractometer for testing purposes, the urine specific gravity value has to be ≥1.003 if the athlete provides at least 150 mL of urine, or ≥1.005 if the athlete provides at least 90 mL of urine.

SmartRef Digital Refractometer for Anti-Doping Testing

Measuring with the SmartRef Digital Refractometer offers a far more sensitive analytical measurement method which positively changes limit values and reduces the time athletes have to spend on doping control. Using only 0.4 mL of sample volume for each measurement the SmartRef displays and stores results in seconds - providing an efficient and advanced way of data acquisition, storage, tracking, and export.

Switch to the smart way of anti-doping testing! It not only saves resources for your anti-doping organization, but is also more athlete-friendly.

Workflow with the SmartRef Digital Refractometer step-by-step guide

Workflow with SmartRef Digital Refractometer

Our step-by-step guide takes you through your first measurement with the SmartRef and shows you how everything works.

Learn more

Device features

High accuracy

High-precision measurement sensor with an accuracy of 0.2 °Brix

Wide measuring range

Measuring range from 0 to 85 °Brix with automatic temperature compensation


Free mobile app for iOS & Android with smart measurement guidance for precise results

Waterproof design

IP66 dust-tight and protected against powerful water jets

Why SmartRef?

Other refractometers
One device for all units
Continuous measurement mode
Simple cleaing & adjustment
Sample verification for reliable results
Smart data management via mobile app
Over-the-air updates with new features & scales
Automatic in-app calculations
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