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REED Instruments
REED Instruments R9600 Salinity Refractometer
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Best Refractometers · head-to-head
REED Instruments R9600 Salinity Refractometer vs Extech RF20 Salinity Refractometer
A sourced, side-by-side comparison. REED Instruments R9600 Salinity Refractometer is cheaper at —. 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 | REED Instruments R9600 Salinity Refractometer | Extech RF20 Salinity Refractometer |
|---|---|---|
| US price | — | — |
| Brand | REED Instruments | Extech |
| Released | — | — |
| Brix range pct | — | — |
| Resolution pct | 0.2 | 1 ppt |
| Accuracy pct | ±0.2 | ±0.1% |
| Atc | Yes | Yes |
| Scale type | Salinity (0-28%) | Salinity (0-100 ppt) |
| Digital or analog | Analog | Analog |
| Sample volume (ml) | — | — |
| Prism material | — | — |
Sources — REED Instruments R9600 Salinity Refractometer: reedinstruments.com (verified 2026-08-12). Extech RF20 Salinity Refractometer: extech.com (verified 2026-08-12).
What's the difference between the REED Instruments R9600 Salinity Refractometer and Extech RF20 Salinity Refractometer?
Where the two actually differ on the specs we track (3 of 8). Matching specs are omitted.
- Resolution pct: REED Instruments R9600 Salinity Refractometer 0.2 vs Extech RF20 Salinity Refractometer 1 ppt
- Accuracy pct: REED Instruments R9600 Salinity Refractometer ±0.2 vs Extech RF20 Salinity Refractometer ±0.1%
- Scale type: REED Instruments R9600 Salinity Refractometer Salinity (0-28%) vs Extech RF20 Salinity Refractometer Salinity (0-100 ppt)