Atago
Atago Master-20T Analog Brix Refractometer (0-20%)
$235
Best Refractometers · head-to-head
Atago Master-20T Analog Brix Refractometer (0-20%) vs Extech RF20 Salinity Refractometer
A sourced, side-by-side comparison. Atago Master-20T Analog Brix Refractometer (0-20%) is cheaper at $235. Every spec and price links to its source.
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Extech
Extech RF20 Salinity Refractometer
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec |  Atago Master-20T Analog Brix Refractometer (0-20%) | Extech RF20 Salinity Refractometer |
|---|---|---|
| US price | $235 | — |
| Brand | Atago | Extech |
| Released | — | — |
| Brix range (%) | 0.0 to 20.0 | — |
| Resolution (%) | 0.1 | 1 ppt |
| Accuracy (%) | ±0.2 | ±0.1% |
| Atc | Yes | Yes |
| Scale type | Brix | Salinity (0-100 ppt) |
| Digital or analog | Analog | Analog |
| Sample volume (ml) | — | — |
| Prism material | — | — |
Sources — Atago Master-20T Analog Brix Refractometer (0-20%): atago-usa.com (verified 2026-08-12). Extech RF20 Salinity Refractometer: extech.com (verified 2026-08-12).
What's the difference between the Atago Master-20T Analog Brix Refractometer (0-20%) and Extech RF20 Salinity Refractometer?
Where the two actually differ on the specs we track (3 of 8). Matching specs are omitted.
- Resolution (%): Atago Master-20T Analog Brix Refractometer (0-20%) 0.1 vs Extech RF20 Salinity Refractometer 1 ppt
- Accuracy (%): Atago Master-20T Analog Brix Refractometer (0-20%) ±0.2 vs Extech RF20 Salinity Refractometer ±0.1%
- Scale type: Atago Master-20T Analog Brix Refractometer (0-20%) Brix vs Extech RF20 Salinity Refractometer Salinity (0-100 ppt)