Hacker News Reader

can you share which one was it? I'm also looking for one, and CO2 is surprisingly uncommon. I'd also love for it to be HomeKit compatible, which makes it nearly impossible

View on HN

I have the Airthings view plus. It measures PM2.5, PM1, CO2, VOC, Radon. It was kind of expensive but I am happy with it.

Reply on news.ycombinator.com