AirGradient Forum

No values for NOx

I’ve deployed my sensor today and while there’s data visible for all the components such as PM, Temperature, Humidity, etc. The NOx values have been captured as a stagnant 1 throughout. What could be the reason behind it?

That is the expected result. The value is an index that monitors how it changes. 1 is the lowest value. If it started going up, the. You have an increase in NOx exposure.

Similar with VOC, although that one the baseline is 100, increasing is more VOC and less is reduction

Thanks @MallocArray!

Hi @Anshika_Kansal - for more insight into the NOx index, you can read through this documentation by Sensirion: https://sensirion.com/media/documents/9F289B95/6294DFFC/Info_Note_NOx_Index.pdf

Same for the VOC Index: https://sensirion.com/media/documents/02232963/6294E043/Info_Note_VOC_Index.pdf