| Test principle | infrared principle |
| Display mode | 128×64 matrix dot LCD |
| Test range | 0 ~ 30/50/99.9% CO2 |
| Resolution | 0.1% |
| Accuracy | ≤±1%FS |
| Repeatability | ≤±1% |
| Response time | T90≤15S |
| Analog output |
4-20mA.DC(non-isolated output, loaded resistance lower than 500 Ohm) 0-10V.DC(non-isolated output, loaded resistance higher than 10k Ohm) 1 way programmable alarm output (Dry contact type, maximum load 220VAC/2A) |
| Communication port | RS232(default)or RS485 |
| Power supply | AC170 ~ 264V 50/60Hz power dissipation less than 10VA |
| Sample gas temperature | -10℃ ~ +50℃ |
| Environment temperature | <80%RH |
| Sampling mode | sample gas pass-in |
| Sample gas flow | 400 ~ 600ml/min |
| Sample gas pressure | 0.05Mpa≤entrance displayed pressure≤0.35Mpa,steady pressure environment |
| Background gas | CO2 and inactive gas |
| Appearance Size | 155mm×155mm×290mm(H×W×D) |
| Install Hole Cut | 135mm×135mm(H×W) |
| Serving life | >40 months (under normal use) |
| Gas circuit port | Φ6 plastic pipe inlet and outlet |
| Install mode | frame mount |