DiFluid
R2 Extract
Digital refractometer that measures the TDS of brewed coffee and connects to CoffeeOS to work out extraction.
- CMOS sensor with a micro-calibration on every test
- Aluminum sample dish for stable temperature
- IP67 water resistance
- 4-second test time
Specifications
- Range
- 0–30% TDS
- Precision
- ±0.02% TDS
- Accuracy
- ±0.03% TDS
- Resolution
- 0.01% TDS
- Refractive index range
- 1.33299–1.38660
- Operating temperature
- 5–40 °C
- Battery
- 430 mAh, USB-C
- Water resistance
- IP67
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