The AirGradient Builds Overview
We are continuously updating our open hardware / open source air quality monitor kits and as a results have different versions of the built instructions. The version you are having is written on the PCBs. Please check with the table below and then click on the link to the built instruction that applies to your kit.
Additionally, you can download all source files for the monitors on this page. All builds are licensed under CC BY-SA 4.0. Please ensure proper attribution.
In case you have questions or a problem during the assembly, the best and fastest way is to visit our forum.
Firmware Repositories
The firmware for the DIY PRO / ONE and Open Air Models is a combined version and is available on the AirGradient Arduino GitHub. Please open issues there for bugs or feature requests.
The firmware for the Open Air Max Model is also available on our GitHub repository called openair-max. Please open issues there for bugs or feature requests.
AirGradient ONE Indoor Monitor
| Version | Image of PCB / Files | Main Improvements / Changes | Link to Instructions | Arduino Sketch Name |
|---|---|---|---|---|
| I-9PSL Model |  black or blue PCB | Complete new design. ESP32-C3-Mini, RGB LED bar, hardware watchdog | build instructions | OneOpenAir.ino |
AirGradient Open Air Outdoor Monitor
| Version | Image of PCB / Files | Link to Instructions | Arduino Sketch Name |
|---|---|---|---|
| O-1PST Model |  | build instructions | OneOpenAir.ino |
AirGradient Open Air Max Professional Outdoor Monitor
| Version | Image of PCB / Files | Link to Instructions | Firmware Code |
|---|---|---|---|
| O-M-1PPST-CE-S Model | 
| N/A. Only available fully assembled | GitHub openair-max |
DIY BASIC Kits (no longer maintained)
| Version | Image of PCB / Files | Main Improvements / Changes | Link to Instructions | Arduino Sketch Name |
|---|---|---|---|---|
| 4.0 |  | Switched to shorter cross-over cable for PM. Made T/RH sensor slot compatible with AG module | standard version | BASIC.ino |