Analogue refractometer

Product family: ORA-U

Refractive index measurement for laboratories and the industry


Refractometer type Handheld refractometer
Scale - Display type Analogue
Area of application Industry
Measuring method Light refraction
Measurement temperature (°C) 20 °C – 20 °C
Scale urea
Measuring range urea 0 % – 40 %
Readout urea 0,2 %
IP protection - complete device -
Dimension (W×D×H) 160×40×40 mm
Product family ORA-U
€ 90,00 *
*plus shipping costs (not applicable for downloads), plus VAT
Available from stock
Compare Technical data sheet Product brochure

Do you have questions? Please get in contact +49 7433 9933-0 or For technical questions please contact:

Ralf Gutbrod
Ralf Gutbrod
Category Manager - Optics, Team Leader - Technical Sales
Tel.: +49 7433 9933-306




  • The models in the KERN ORA-U range are universal, maintenance-free analogue manual refractometers
  • The handy and robust design allows the easy, efficient and sustainable use in everyday life
  • Manually calculated conversions and errors of the user are avoided by multiple selectable scales.
  • These scales are especailly developed, exactly calculated and checked. They are also characterized by their thin and clear lines.
  • The optical system and the prism cover are made of special material which allows a low-tolerance measuring.
  • All models are fitted with an eyepiece which can be adjusted easily and smoothly to different visual capacities
  • Included with the delivery:
    - Storage box
    - Calibration solution
    - Calibration block if necessary
    - Pipette
    - Screwdriver
    - Cleaning cloth
  • Further accessories are available optionally.
  • This model is particularly suitable for measuring and determining urea.
  • The main scope of applications is:
    - Automotive industry: Car-workshops and producers
    - Chemical industry
    - Solar industry: Antifreeze monitoring


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