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For your homemade sauces & dips


When making ketchup, the tomato paste or tomato puree is diluted with water to the desired Brix level. Depending on the recipe, the remaining ingredients such as sugar, salt, and preservatives are then added, followed by sterilization and homogenization for the required consistency.

With the SmartRef digital Brix refractometer, you can measure the Brix value of the ingredients of your ketchup, sauces, and dips and make decisions regarding dilution based on that.

Connected to a mobile app, the SmartRef digital refractometer determines the sugar content of your raw ingredients in °Brix and additionally allows you to store and visualize the measurement results so that you can easily ensure consistency within your production results.

Lab Meister App for SmartRef Digital Refractometer Brix Measurement for Ketchup Dips Sauces

The Lab Meister smartphone app allows you to measure, save, visualize and export data all in one place.

With a small sample volume of only 0.4 mL, the SmartRef delivers accurate results with automatic temperature compensation (ATC):

  • Brix [°Bx]
  • Refractive index current temp. [nD]
  • Refractive index at 20 °C [nD @20]
  • Temperature [°C], [°F]

Additional measurement units with Lab Meister Pro mobile app subscription:

  • Fructose [% w/w Fru]
  • Glucose [% w/w Glc]
  • Invert sugar [% w/w IS]
View all specifications
Workflow with the SmartRef Digital Refractometer

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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