MG812 CO2 Sensor Ultra Low Power Carbon Dioxide Sensor Module Detection

Features:
MG-812 is a semiconductor oxide chemical sensor that uses solid electrolyte battery principle to detect CO2. When the sensor is kept at a certain operating temperature and placed in a CO2 atmosphere, the positive and negative electrodes of the battery will react, and the electromotive force will be generated between the sensor's sensitive electrode and the reference electrode. The output signal voltage is inversely proportional to the logarithm of CO2 concentration, and the change of CO2 concentration can be detected by testing the change of signal voltage.

It is used in air quality control system, fermentation process control system, greenhouse and other places for CO2 concentration detection

Specifications:
Heating current IH    85mA±10mA
Heating power consumption PH    420mW±50mW
Operating temperature Tao    -20℃ ~ 50℃
Storage temperature    -20℃ to 70℃
Zero EMF    200MV-400MV (in 400ppmCO2)
Output signal    
DEMF ≥20mV

EMF (400ppmCO2) -EMF (1000ppmCO2)