Refractometer – Pen-Pro


Pen-type refractometer with expanded features can be used to measure almost any type of sample, even non-homogenous samples.


  • Measure almost any sample type, from sauces to yoghurt and soup.
  • Non-homogenous samples are no problem – stir the sample whilst taking continuous measurements until the readings become stable.
  • You can even take measurements from hot products, such as soups and sauces


  • New feature to perform continuous measurements – once the START key is pressed, measurements can be taken every second, so you can measure different liquid samples of similar concentration and of minimum viscosity one after another
  • Measure in one of two ways: dip the tip into the sample and press START; or press START and touch the tip to the sample
  • Measurement range of Brix approximately 0.0 to 85.0%
  • Improved temperature range from 60 – 100°C – no more waiting, measure hot samples during the cooking process
  • Equipped with a new technology "External-Light-Interference" ( E. L.I. )* that enables you to take accurate measurements with ease and confidence near a window or outside
  • Automatic temperature compensation (ATC)
  • Compact and easy to carry, 70 g
  • Calibrate with water – no standard solutions necessary
  • IP65 – extremely water resistant and protected against splashing water. You can rinse off the sample by running water on the prism
  • Comply with HACCP, GMP and GLP standards


One year


Measurement range Brix 0.0 to 85.0%
Resolution Brix 0.1%
Measurement accuracy Brix approx. 0.2%
Measurement temperature 10 to 100°C (Automatic Temperature Compensation)
Sample temperature 10 to 100°C
Ambient temperature 10 to 40°C
Measurement time 3 seconds
Power Supply 1 x AAA alkaline battery
International protection class IP65 water resistant (Prism head IP67)
Dimensions & Weight 16 x 3.8 x 1.8 cm; 70 g (main unit only)

Delivery Content

  • Refractometer
  • Convenient storage case
  • Batteries
  • Instruction leaflet

Additional information

Weight 0.70 kg