Ikea Vindriktning Air Quality Sensor Review and Accuracy
Author here. I forgot to mention:<p>With a Wemos D1 mini (ESP8266) MCU that costs around USD 2.00, you can pretty easily make the Vindriktning WiFi connected and get the data to a backend [1].<p>You just need to solder three wires, and there is enough space within the enclosure to fit the D1 mini inside.<p>This would then allow you to get the exact measurements and to better understand if the "green" is more on the lower end or the higher side.<p>[1] <a href="https://github.com/Hypfer/esp8266-vindriktning-particle-sensor" rel="nofollow">https://github.com/Hypfer/esp8266-vindriktning-particle-sens...</a>