Research Article
Development of an IoT-Based Indoor Air Quality Monitoring Platform
Table 4
Specifications of the CO sensor.
| Specification | Value |
| Sensor input voltage | 1 to 12 V | Operating temperature | -10 to 50 Celsius | Operating humidity | 5 to 90% RH (non-condensing) | Reaction time | Less than 10 sec | Recovery time | Less than 30 sec | Power consumption | Below 380 mW | Sensitivity (β) for CO | (concentration: 100 ppm) | Sensitivity (β) for tobacco | (concentration: 2000 ppm) | Sensitivity (β) for ethyl alcohol vapor | (concentration: 50 ppm) | Accuracy | ±7% |
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