| Dissolved oxygen meter (Optical type) | |
| Model | ECC-DY2900 |
| Measuring range | 0 to 20mg/L, 0 to 200%, 0 to 400hPa |
| Resolution | 0.01mg/L, 0.1%, 1hPa |
| Repetition | ± 0.5% FS |
| Temperature Measurement Type | NTC 10K/PT1000 |
| Accuracy | 0.1%FS |
| Communication protocol | Standard MODBUS-RTU (customizable) |
| Alarm relay | AC50V, 3A |
| Output | 4 to 20 mA current transmission output |
| Power supply | AC220V±10%, 50Hz/60Hz (optional 24V±10%) |
