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%