In summer I’ll probably move to another home near the airport. This is why I look for a NOX/NO2 sensor. I need one, who is supported by default sensor community arduino sketch, or at least one supported by ESP32 development board. Is there an affordable sensor in the market?
Thanks in advance to the community!
I think there is still no cheap sensor for NO2 with specs which are compatible with the values in the air.
I made à firmware for the Cairsens Envea which works well but is very expansive.
Feel free to contact me in this thread for further information.
We are building 26 PM sensors with SEN55, they have some NOx index value.
Has someone experience with this NOx value
I would say it is not the concentration… It is difficult to interpret and use.
What sensor is used for Cairsens Envea device? I found no information about in data sheet.
Has someone experiences with GM-102B?
Hi, i’m interested about that, can you tell me more?
Welcome!
Which message are you refering to ?
The one about the Envea Cairsens ?
yes about the envea cairsens
Click on the link above.
I don t who is the dealer but it should be available somewhere. I développed a working code for it. Can you explain me further what you need / want to do ?
I already have the sensor, and I can read the values with my esp8266 (thanks to PINCENT Remi GitHub - Lahorde/cairsens_uart: CairPol Cairsens UART protocol, if he comes by)
So I’m wondering if the sensor community will add this sensor and if I can help develop this part.
What do you mean when you talk about working code
The Sensor is too expensive for SC.
I integrated my code in a firmware for AirCarto in the Last Version of the Nebulair.
Just Check Aircarto.Fr and their github
Thank you @pjg but I didn’t find the firmware you were talking about 
Hi ,
What do you want to know about GM-102B?