The Fab City Foundation has released the latest version of their networked air quality monitor as an easy to assemble kit. Thousands of these kits are installed world-wide monitoring local air quality and uploading real-time data that can be viewed at https://smartcitizen.me/kits/

Complete details, including documentation, can be found at: https://smartcitizen.me

Kits can be ordered from SeeedStudio for USD$149.00 at: https://www.seeedstudio.com/Smart-Citizen2-3-p-6327.html