Grove Air quality sensor 1.3

Hi there

I I’ve never seen so little information about “Air quality sensor 1.3”’ output? Do I need to guess what the output means (from the code example) or is there a doc about the output from the grove? The documentation I find only deals with the superficial (and a diagram), but no information about using thew air sensor correct and so on.

Where do I find information to correctly implement the air sensor?


I need to know the voltage value (outport) relative to air quality.

And how do Arduino convert this voltage values to an useful Air quality Index?