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£368.00 £441.60 (Inc. VAT)

Product Description

The primary scale of this refractometer is 1.33-1.54 refractive index. This scale is in fact the primary scale from which all other scales are derived. You could, therefore, use this refractometer for almost any application – providing you had the information required to form your results.

For most users we recommend our application-based refractometers, however for specialist use this can be used for:

  • chemicals
  • surfactants
  • detergent blends
  • fertilisers
  • diesel fuel additives
  • anti-freeze fluids

This OPTi refractometer comes with 1 preset scale and 2 empty scales ready for user definition.

Scale A is set to Refractive Index

Scale B is empty: User Defined

Scale C is empty: User Defined 

The OPTi Digital Handheld Refractometer – Refractive Index (RI) scales are preselected at despatch, but may be reassigned using the scale selection.


The OPTi® Digital Handheld Refractometer puts a powerful, fully portable instrument in the palm of your hand. Powered by just 2xAAA batteries, the OPTi refractometer can take 10,000 readings in 50 common refractometer scales.

OPTi refractometers are made in the UK and feature a durable IP65 rated housing, a stainless steel prism dish which rapidly stabilises sample temperature, and a clear LCD display. All tri-scale OPTi refractometers have the ability to measure across the full 0-95 °Brix range.

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