Which is the best air quality sensor for arduino?
I'm looking to monitor air quality outdoor. I would like to measure various contaminants.
you need to define what you need with "best".
Be aware there is no single sensor that measures all contaminants.
can you indicate your budget size as quality sensors are expensive (I mean real expensive)
In the real world relations are non-transitive, you can sometimes meaningfully compare two
items, but rarely is there a best or worst. Scissors, paper, stone....
Also, are you measuring particulates or gases? Makes a big difference.
Paul