https://www.airgradient.com/diy/
Build video from Jeff Geerling:
- Wemos D1 Mini USD ($2.24)
- Wemos OLED display USD ($2.47)
- Plantower PMS5003 PM Sensor USD ($13.89)
- Senseair S8 CO2 Sensor USD ($28.00)
- SHT30 or SHT31 Temperature and Humidity Sensor Module USD ($2.55)
Kit from AirGradient DIY Shop.
$66 + $15.50 shipping.
- Lower shell 18.65 x 89 x 79 mm | 0.73 x 3.5 x 3.11 in
- Upper shell 25 x 89 x 79 mm | 0.98 x 3.5 x 3.11 in