Here is the “official” response from SEEED:
Hope this helps. My take away is that you cannot trust the numbers output specifically. However, one can track a trend or spike in the values to get an idea the environment is unsafe.
I just purchased and received a Grove - Air quality sensor v1.3 and intend to use it in conjunction with the Multichannel Gas Sensor to help determine if there is danger.
Seeed Customer Support Team [email protected]
Thu 12/17/2020 7:35 PM
Hello gesWho,
Our relevant department told us that
This product can’t be measured quantitatively, only qualitatively.
It can only detect whether there is corresponding gas, but it can not detect the gas concentration.
Please feel free to contact us if you have any questions. Thanks.
Best Regards!
Vicky
Seeed Bazaar Customer Support TeamOn Dec 17, 2020 at 11:47 AM gesWho