Index Instruments DR-303 Mini Digital Refractometer

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The DR-303 mini digital refractometer from Index Instruments is ideal for measuring urine specific gravity or serum protein, as well as other refractive index measurements. The DR-303 is a high accuracy mini refractometer, providing measurements quickly and easily. Easily screen urine samples for hydration, glucose, UTI, or protein before carrying out more diagnostic tests.

Features of the DR-303 mini digital refractometer:

  • Scale suitable for urine and protein
  • Full automatic temperature compensation
  • Small and compact, with handy carry case
  • For full technical specifications see datasheet below


Download datasheet for DR-303 mini digital refractometer

Additional information

Weight0.3 kg
Dimensions7 × 15 × 7 cm






30 days (Richmond Promise)


Datasheet for DR-303 mini digital refractometer

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