MH-Z19B - CO2 Sensor

A Grove sensor designed for indoor air quality testing.  

GY- SGP30 AIR QUALITY GAS SENSOR TVOC ECO2 CARBON DIOXIDE MEASUREMENT FORMALDEHYDE MODULE

Adafruit MiCS5524 CO, Alcohol and VOC Gas Sensor Breakout

MQ-3 Alcohol Gas Detector Alcohol Ethanol Sensor Module DT

MQ135 Gas Sensor only

MQ5 Gas sensor only

MQ2 Gas sensor

MQ7 Gas sensor only

MQ-3 Alcohol Gas Detector Alcohol Ethanol Sensor Module (Blue)

MQ4 Gas sensor only