A relevant discussion about air quality sensors from less than a year ago: "Many indoor air quality sensor products are a scam" - https://news.ycombinator.com/

A relevant discussion about air quality sensors from less than a year ago: "Many indoor air quality sensor products are a scam" - https://news.ycombinator.com/item?id=33025995 https://news.ycombinator.com/item?id=33025995 I almost bought Airgradient's pre-soldered kit[1] but I went with the Airthings View Plus[2] because it came with a Radon sensor. It's pricey (US$299), but not $1000 pricey as mentioned in the article. But I think I might still get the Airgradient sensor for another room just because it's cheaper and I don't need more than one Radon sensor. 1. https://www.airgradient.com/open-airgradient/shop/#!/DIY-Pro-Kit-Pre-Soldered-version-4-2/p/476627519/category=0 https://www.airgradient.com/open-airgradient/shop/#!/DIY-Pro... 2. https://www.airthings.com/en/view-plus https://www.airthings.com/en/view-plus