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.

In case you have questions or a problem during the assembly, the best and fastest way is to visit our forum.

Firmware Repository

The firmware for all models is available on the AirGradient Arduino GitHub. Please open issues there for bugs or feature requests.

DIY PRO / ONE Kits

Version	Image of PCB / Files	Main Improvements / Changes	Link to Instructions	Arduino Sketch Name
9.0	black or blue PCB KiCad files main PCB Gerber file main PCB KiCad files LED bar Gerber files LED bar SGP41 Module SHT40 Module Enclosure STL Clip-On Stand STL	Complete new design. ESP32-C3-Mini, RGB LED bar, hardware watchdog	build instructions	OneOpenAir.ino
4.2	black or green PCB Gerber files KiCad files Enclosure STL Clip-On Stand STL	Improved tracing / ground plane, removed D1 shield, change in button connection, switch to cross over cable for PMS	standard version / presoldered version	DiyProIndoorV4_2.ino
3.7	black or green PCB Gerber files Enclosure STL Clip-On Stand STL	Push button for configuration, rounded corners	standard version / presoldered version	Compatible with DiyProIndoorV3_3.ino but no push button functionality
3.3	black or green PCB Gerber files Enclosure STL Clip-On Stand STL		standard version / presoldered version	DiyProIndoorV3_3.ino

Open Air Outdoor Kits

Version	Image of PCB / Files	Link to Instructions	Arduino Sketch Name
1.3 PST Model	KiCad files SGP41 Module CO2 Module STL Files	build instructions	OneOpenAir.ino
1.1 PP Model	KiCad files STL Files	build instructions	OneOpenAir.ino
0.6	Gerber files STL Files	standard version	DIY_OUTDOOR.ino (not maintained anymore) Last version in Release 2.4.15

DIY BASIC Kits

Version	Image of PCB / Files	Main Improvements / Changes	Link to Instructions	Arduino Sketch Name
4.0	Gerber files STL Files	Switched to shorter cross-over cable for PM. Made T/RH sensor slot compatible with AG module	standard version	BASIC.ino
3.0	Gerber files STL Files	Changed S8 orientation, added holes for zip ties	standard version	BASIC.ino
2.4	Gerber files STL Files		standard version	BASIC.ino