| Brand & Model | S/N | Parameter | Range | Resolution | Accuracy | Pres. Sensor | P. Sens. S/N |
| AANDERAA Optode 4831 | 0214 | Oxygen | 0 ÷ 500 µM | < 0.1 µM | <2 µM or 1.5% |
| Data | "Work type" | Description | Coefficients | Temp Coefficients |
| 2017-12-01 | Built-in |
| Test + Calibration certificate |