| Display mode | LED display |
| Carbon Dioxide(CO2) | 0~9999PPM |
| Accuracy | 70ppm ±3% |
| Resolution | 1ppm |
| Response time | 1s |
| Repeatability | ±20ppm |
| Temperature Range | -40~1250℃/(104-257℉) |
| Temperature Accuracy | ±0.5℃/±0.6℉(10~55℃/50-131℉) |
| Humidity Range | 0.1-99.9% |
| Humidity Accuracy | ±3%RH(20%RH~80%RH) 25℃ |
| Power | adaptor(DC9v) |
| Operating Environment | 5 ~ 30℃; (0~85%RH) |