| Target gas |
Carbon Dioxide (CO2) |
| Operating principle |
Non-dispersive infrared (NDIR) |
| Measurement range |
0-5000ppm(extend to 10000ppm) |
| Working temperature |
-10°C ~ 50°C |
| Working humidity |
0-95%RH (non-condensing) |
| Storage temperature |
-30°C ~ 70°C |
| Storage humidity |
0-95%RH (non-condensing) |
| Accuracy |
± (50ppm+3% of reading)(0-5000ppm, 0-50℃, 50±10%RH) |
| Sampling frequency |
1s |
| Time to first reading |
≤30s |
| Power supply |
DC 3.5V~5.5V |
| Working current |
<50mA @1s |
| Dimensions |
W33 * H21.7 * D12.7mm（without pin） |
| Weight |
6.3g |
| Signal output |
UART: TTL (3.3V/5V electrical level) |
| PWM: linear output |
| I2C (3.3V electrical level) |
| PWM output |
Output high level minimum duration: 2ms (0ppm) |
| Output high level maximum duration: 1004ms (5000ppm) |
| Alarm output |
Reserved |
| Life span |
≥10 years |
