The PAL-SDG "Pocket" Digital Refractometer from Atago Japan uses the Brix % scale to measure total dissolved solids or TDS in aqueous solutions. 

The PAL-SDGs is a kind of concept product that ATAGO manufacture with care to the environment by applying the Sustainable Development Goals (SDGs) in mind.

They are functionally brand new products, but made using aesthetically defective parts with small visual imperfections to the outer casing, that do not pass the appearance QC test, or using functional parts from non-repairable units and is therefore not always available to us at any specific time.

- This does not affect product usability or functionality -

The PAL-SDG has a wide measuring range from 0 to 40% Brix, with 0.1% display resolution.

Usage is extremely simple with one-touch measurement. Just place 0.3ml (2~3 drops) of your sample solution onto the sample stage prism and press "Start". Results are determined automatically within 3 seconds.  Zero calibration can be completed with water.

It is compact and lightweight and has IP65 protection rating. This makes it easy to clean up after use under running water.  It runs on 2 x AAA batteries and features Automatic Temperature Compensation "ATC" to improve measurement accuracy and consistency on samples of all temperatures.

Made in Japan to the highest standards by the leaders in refractometry with 76 years experience.



  • Range: 0-40% Brix
  • Resolution: 0.1% Brix 
  • Accuracy: +/- 0.2% Brix 
  • 0.3ml sample for testing
  • One-touch operation
  • Fast measurement within 3 seconds
  • IP65 water resistant
  • Ultra compact 55 x 31 x 109mm 


Brand atago

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