| Parameters | Technical indicators |
| PH3 measuring range | 0-20ppm/0-2000ppm |
| Measurement method | electrochemical sensor |
| NO2 measurement accuracy | 3%F.s |
| Response time (T90, seconds) | less than 30 seconds |
| Warranty period | The host is guaranteed for 2 years, and the gas probe is guaranteed for 1 year |
| Communication port | Analog quantity interface (voltage type or current type) |
| Power supply | 12V-24V DC |
| Power consumption | <1W |
| Operating temperature | -20 to +50℃ |
| Working humidity environment | 15-95%RH (relative humidity), no condensation |
| Dimensions | 110×85×44mm3 |
| Current output type | 4-20mA |
| Current output load | ≤600 ohm |
| ≤250 ohm | 0-5V/0-10V |
| Voltage output load | ≤250 ohm |