Solid Electrolyte CO2 Sensor MG812

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MG-812 is a semiconductor oxide chemical sensor that uses solid electrolyte battery principles to detect CO2. When the sensor is kept at a certain working temperature and placed in a CO2 atmosphere, an electrode reaction occurs between the positive and negative electrodes of the battery, and the output signal voltage is inversely proportional to the logarithm of the CO2 concentration. A voltage change in the test signal can detect a change in the CO2 concentration.


* Small sizes

* Low power-consumption

* High sensitivity and good selectivity

* Less affection by temperature and humidity

* Good stability and repeatability

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Specification Product Size

Technical Data Sheet

Model No. MG812
Standard pack Metal shell
Target gas CO2
Detection range 0~ 10000ppm CO2
Heater voltage VH 5.0 ± 0.1 V
Heater resistance RH 60.0 ± 5Ω
Heater current IH 85 ± 10mA
Heater consumption PH 420 ± 50mW
Working temp Tao -20~50℃
Storage temp -20~70℃
Zero EM F 200-400mV (in 400ppm CO2)
Output signal △EM F ≥20mV EMF (40ppmCO2)- EMF (1000ppmCO2)


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As a pioneer in gas sensor based solutions with the advanced processes, technologies and products, Winsen offers a wide range of gas sensors:


As a pioneer in gas sensor based solutions with the advanced processes, technologies and products, Winsen offers a wide range of gas sensors:


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