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  • The SmartRef Digital Refractometer by Anton Paar is a portable, smart pocket device is perfect for measuring your wort’s extract content, determining the specific gravity with ease almost instantly.


    The SmartGuide+, as a feature in the mobile app, automatically checks any errors of ambient light, impurity, and sample behavior during measurement for you. The device offers more than 15 different measurement units with automatic temperature compensation. Depending on your need, SmartRef can also enable you to measure the salt content of your aquarium or pool, the sugar content in wine, the sweetness of fruits and vegetables, the moisture of honey, and much more.


    Smart Brewing Refractometer

    • Perfect for quick & accurate results with a small sample size (0.4mL).
    • Wort Plato and Specific Gravity readings are automatically adjusted:
      • Built-in wort correction factor is applied and can be configured
      • Alcohol correction can be applied to all readings when alcohol is present
    • Fast temperature stabilization and automatic temperature compensation (ATC).
    • ABV calculation based on your OG & FG, data visualization & management, sharing of measurement data, and more are available in the Brew Meister mobile app.
    • Quick one-point calibration with distilled water.
    • IP66 Waterproof and dustproof.
    • Easy-to-clean stainless steel sample well.
    • SmartGuide+ functionality helps to eliminate any measurement problems:
      • High ambient light detection
      • Continuous check of prism and sample condition, and more
    • Over-the-air updates keep your digital refractometer up to date with the latest features.
    • Compatible apps: Brew Meister, Wine Meister, Lab Meister, Reef Meister enables easy storage, visualization, management, and sharing of measurement data.
    • In addition to the quick measurement mode, measurements in continuous mode allow a more detailed understanding of the samples’ properties.


    Smart technology for consistent results

    • SmartGuide+, as a feature in the app, detects and helps to eliminate any measurement problems through high ambient light detection, continuous check of prism and sample condition, and more.
    • The SmartRef is used in combination with a free mobile app for Android and iOS via Bluetooth Low Energy and enables intelligent handling of the measurement results.
    • Over-the-air updates keep your digital refractometer up to date with the latest features.


    SmartRef measurement details

    • The SmartRef refractometer measures the refractive index of fluids. This allows to retrieve relevant sample properties in a wide variety of applications.
    • Fast temperature stabilization and automatic temperature compensation of the measurement results make additional calculations and correction tables obsolete.
    • The unit has an IP66 rating and an easy-to-clean stainless steel sample well.
    • The SmartRef supports a one-point zero adjustment with distilled water and requires only a few drops of sample (0.4 mL).
    • It displays results in under 2 seconds and has a measurement range of 0 to 85 °Brix with an accuracy of 0.2 °Brix.


    High variety of measurement applications

    • Honey, wine, juice, sauces, jams, fruits, vegetables, and maple syrup
      The SmartRef measures the sugar content in °Babo, °Baumé, °Brix, °KMW, and °Oechsle.
    • Saltwater aquariums and saltwater pools
      The SmartRef determines the salt content in your saltwater aquarium and pool in Salinity Specific Gravity (SG 20/20), Practical Salinity Units (PSU), and Salinity in Parts per Thousand (ppt).
    • Beer
      The SmartRef shows the extract content of wort in °Plato and Specific Gravity (SG 20/20).
    • Industry & automotive sector
      The SmartRef determines the freezing point and concentration of ethylene glycol and propylene glycol.
    • And more

    As a smart device, the SmartRef offers a constant expansion of measurement units. All available scales are provided within the app.


    With the SmartRef there is no need to look up tables, do calculations, or even write anything down. Ever.


    Brix (°Bx) Accuracy: ±0.2; Resolution 0.1; Range 0-85; ATC 10°C to 100°C

    Wort Plato (°P) Accuracy: ±0.2; Resolution 0.1; Range 0-40; ATC 10°C to 100°C

    Wort S.G. (SG 20/20)* Accuracy: ±0.001; Resolution 0.001; Range 1.000-1.200; ATC 10°C to 100°C

    SmartRef - Smart Brewing Refractometer w/ Built-In Wort and Alcohol Correction

    GST Included |
    • Device Specifications

      Dimensions (L x W x H) 108 x 64 x 35 mm (4.3 in x 2.5 in 1.4 in)
      Weight (incl. batteries) ~135 g (0.31 lbs.)
      Power supply 2x AAA 1.5V LR03 alkaline batteries (included) or AAA NiMH rechargeable batteries
      Enclosure Rating IP66 according to IEC 60529