7 ms·

This one has worked really well for me and friends who are also using it: https://www.amazon.de/TFA-Dostmann-AirCO2ntrol-CO2-Monitor-Kunststoff/dp/B00TH3OW4Q/ h

• flgr 7y ago
  There's also software to read the measurements it makesover USB, but I haven't personally used that: https://github.com/huhamhire/co2-monitor-exporter https://github.com/huhamhire/co2-monitor-exporter
  • flgr 7y ago
    Looks like the underlying logic came from this blog series, which made me originally buy that particular device: https://hackaday.io/project/5301-reverse-engineering-a-low-cost-usb-co-monitor https://hackaday.io/project/5301-reverse-engineering-a-low-c... :)
• Sujan 7y ago
  Thanks, ordered and will try it out.