Hi o_o, Thank you for reply! @o_o Which type of sensor from SGX are you using ? It is also a metal oxide sensor ? It is MICS-VZ-89TE module with SGX sensor. Sorry, I can’t identify which sensor model exactly is used in this module, because there are no marking on the sensor. According to this module datasheet the sensor is metal oxide (MOS), module monitoring range is 400-2000 ppm equivalent CO2 and 0-1000 ppb isobutylene equivalent tVOCs. @o_o...if CO2 is a concern, you should definitely compare the results with a real CO2 sensor. I have compared results with real CO2 sensor, but these results are not correlated in long periods. Also I have observed very stable level behavior of real CO2 sensor, it was dependant on presence of people in room, so at night CO2 level never increased.
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