Air qualitiy sensor v1.3


Just got the Air quality sensor v1.3 and experimenting with it and aruino uno.

It seems to work, the output is everytime around 350 (High pollution!) for a few hours now.

How can I test it and let change this measurements?

I am inside my flat, there is now difference if the window is open or not (in a small town, almost no traffic etc. around)

Thanks for help.

Peter, Berne, Switzerland

Dear Customer

To ensure our effective communication,Link circuit diagram and the code on your invitation; “designed for comprehensive monitor over indoor air condition. It’s responsive to a wide scope of harmful gases, as carbon monoxide, alcohol, acetone, thinner, formaldehyde and so on”,It is suggested that you can use alcohol to test. Please record the values of the initial values before you test and see the changes of these values. If you do not completely solve your problem, please post again.


seeed techsupport team