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VEE GEE MDX-101 Digital Brix/Refractive Index Refractometer vs Extech RF20 Salinity Refractometer

A sourced, side-by-side comparison. VEE GEE MDX-101 Digital Brix/Refractive Index Refractometer is cheaper at $367.06. Every spec and price links to its source.

Full spec sheet

✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.

Spec VEE GEE MDX-101 Digital Brix/Refractive Index Refractometer Extech RF20 Salinity Refractometer
US price $367.06 —
BrandVEE GEE ScientificExtech
Released——
Brix range (%) 0.0 to 50.0 —
Resolution (%) 0.1 1 ppt
Accuracy (%) ±0.2 ±0.1%
Atc Yes Yes
Scale type Brix / Refractive Index Salinity (0-100 ppt)
Digital or analog Digital Analog
Sample volume (ml) — —
Prism material Stainless steel sample well —

Sources — VEE GEE MDX-101 Digital Brix/Refractive Index Refractometer: veegee.com (verified 2026-10-07). Extech RF20 Salinity Refractometer: extech.com (verified 2026-08-12).

What's the difference between the VEE GEE MDX-101 Digital Brix/Refractive Index Refractometer and Extech RF20 Salinity Refractometer?

Where the two actually differ on the specs we track (4 of 8). Matching specs are omitted.

  • Resolution (%): VEE GEE MDX-101 Digital Brix/Refractive Index Refractometer 0.1 vs Extech RF20 Salinity Refractometer 1 ppt
  • Accuracy (%): VEE GEE MDX-101 Digital Brix/Refractive Index Refractometer ±0.2 vs Extech RF20 Salinity Refractometer ±0.1%
  • Scale type: VEE GEE MDX-101 Digital Brix/Refractive Index Refractometer Brix / Refractive Index vs Extech RF20 Salinity Refractometer Salinity (0-100 ppt)
  • Digital or analog: VEE GEE MDX-101 Digital Brix/Refractive Index Refractometer Digital vs Extech RF20 Salinity Refractometer Analog

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