| Measure parameters |
CO2 |
Temperature |
Humidity |
| Measuring range |
400 PPM to 5000 PPM |
 15.8 °F to 22 °F (-9 ℃ to 50 ℃) |
0% RH to 99% RH |
| Accuracy |
± (50 PPM+5% of reading) |
±1.8 °F (±1 ℃) |
±2% RH |
| Principle of measurement |
NDIR infrared |
The band gap of silicon(digitization) |
Capacitance(digitization) |
| Wireless mode |
Wi-Fi module or ZigBee module available |
| Operating Voltage |
DC 5 V 2A |
| Alarm method |
APP; Air quality four-color indicator ring: Green (Good)Blue (Normal)Yellow (Mild)Red (Severe) |
| Battery |
1400 mAH |
| Operating temperature range |
23 °F to 113 °F (-5 ℃ to 45 ℃) |
| Saving temperature range |
-4 °F to 122 °F (-20 ℃ to 50 ℃) |
| Weight |
0.478Â lb (217.2 g) |
| Physical dimension |
4.3 in x 3.8 in x 1.8 in (110 mm x 98 mm x 48 mm) |
