| Parameters | Technical indicators |
| CH2O measurement range | 0-2ppm/0-5ppm |
| Measurement method | electrochemical sensor |
| CH2O accuracy | ≤±2% of reading (25℃) |
| Warranty period | 2 years for the host and 1 year for the probe |
| Response time | generally less than 15 seconds |
| Baud rate | 2400/4800/9600 |
| Communication port | RS485 |
| Power supply | bus power supply, 12-24V DC |
| Power consumption | ≤0.15W (@12V DC, 25℃) |
| Operating temperature | 0-50℃ |
| Working humidity environment | 15-90%RH (no condensation) |
| Working pressure range | 0.9-1.1atm |
| Dimensions | 110×85×44mm3 |