Build your own accurate air quality monitor with the build instructions below. You can either source the components yourself or get a ready-to-build kit from our online shop.
You can use it with the AirGradient data platform or connect it to other platforms like Home Assistant or HomeKit. More information on our Integrations Page.
Professional and highly accurate air quality monitor built measuring PM2.5, CO2, TVOCs, NOX, temperature and humidity. Board allows a lot of extensibility for other sensors e.g. barometric pressure.
Professional and highly accurate outdoor air quality monitor built measuring PM1, PM2.5, PM10, CO2, TVOCs, NOX, temperature and humidity. Fully weatherproof enclosure.
The Open Air Max Manual allows you to set up your Max monitor in minutes. It also offers insights into more advanced aspects of the device, allowing you to configure and use it exactly how you want.
Read MoreYou have the right to request deletion of your account and personal data at any time.
Read more about Account DeletionUnderstanding what each AirGradient sensor measures is essential for accurately interpreting your air quality data from the dashboard, exports, or API.
Read more about Air Quality ParametersWhen we launched our indoor classroom monitoring with our professional sensors, one of the first feature request from teachers was to have a small display that would show the indoor and outdoor air quality.
Read more about AirGradient DIY DisplayHere we want to give an overview of current and out-of-production AirGradient monitor models.
Read more about AirGradient ModelsLearn how to install your AirGradient ONE air quality monitor
Read more about AirGradient ONE Installation InstructionsLearn how to install your AirGradient Open Air air quality monitor
Read more about AirGradient Open Air Installation InstructionsThe accuracy of an air quality monitor is impacted by a variety of internal and external factors, for example: - Enclosure: The ventilation and internal placement of sensor modules can greatly impact their accuracy.
Read more about Calibration AlgorithmsWe strongly recommend that you fully understand data ownership terms before buying an air quality monitor, as some of them can be extremely restrictive.
Read more about Data Ownership and SharingOn the AirGradient dashboard we allow users to create custom displays and widgets that can be used to show air quality information on almost any smart device (any device with a browser).
Read more about Embedding Air Quality Displays on Public Screens & WebsitesNewer batches of the Plantower PMS5003 sensors that -although working completely correctly and within their specs- can be made more accurate in lower concentration ranges.
Read more about Enhance the Accuracy of the PMS SensorsConnecting the monitor to the AirGradient Dashboard is a two-step process.
Read more about How to connect the Monitors to the AirGradient Dashboard1. Introduction This policy outlines the security considerations and procedures for deploying AirGradient air quality monitors (specifically models like the AirGradient ONE...
Read more about IT Security Policy for Deployment of AirGradient MonitorsThis page helps in reading out data directly from the AirGradient monitor.
Read more about Online DebugThe Open Air Max Manual allows you to set up your Max monitor in minutes. It also offers insights into more advanced aspects of the device, allowing you to configure and use it exactly how you want. Access the manual here .
Read more about Open Air Max ManualWe use the PMS5003T version for our outdoor monitor Open Air which includes an integrated temperature and humidity sensor. If you use the Arduino Sketch from the AirGradient Arduino library you need to patch the PMS library to get these values. Please follow these steps to patch the PMS library.
Read more about Reading Temperature and Humidity from Plantower PMS5003TLearn how to set up and use the AirGradient air quality monitor.
Read more about Somerville Indoor Air Quality MonitorBuild your own open-source, open-hardware air quality monitor measuring PM2. 5, CO2, temperature and humidity.
Read more about The AirGradient Builds OverviewJust a quick shout out that we have 3D printer files to print your own enclosure.
Read more about The AirGradient DIY BASIC Sensor EnclosureThe AirGradient ONE has a row of 11 LEDs behind the plastic at the top of the device.
Read more about Understanding the LED Indicators on Your AirGradient ONEPlease note that these firmware versions do not support the D1 mini (ESP8266) based models DIY Pro or Basic kit but we currently work on an update that will bring as many as possible of the new features to the D1 mini.
Read more about AirGradient ONE (I-9PSL), Open Air (O-1PST) and Open Air Max (O-M-1PPST...) Firmware VersionsFirmware image for flashing of new boards in the factory.
Read more about Factory FlashingBelow are custom firmwares for very specific applications and not for general use.
Read more about Special Firmware VersionsThese instructions are for the people who ordered our first batch of the new DIY kit with the professional enclsosure. Replaced by newer instructions.
Read more about AirGradient DIY Pro Kit Built InstructionsTechnical Documentation of the AirGradient Open Air Outdoor Air Quality Monitor. Replaced by newer instructions.
Read more about AirGradient Open Air Outdoor Air Quality Monitor Technical Documentation (PCB Version 1.1)For all the old versions of the AirGradient build instructions the Wemos D1 Mini microcontroller was used. Replaced by newer instructions.
Read more about Install the Arduino Software and D1 MiniFor the new AirGradient monitors we use the ESP32-C3-MINI microcontroller. Replaced by newer instructions.
Read more about Install the Arduino Software for the ESP32-C3Build your own open-source, open-hardware air quality monitor measuring PM2. 5, CO2, temperature and humidity. Replaced by newer instructions.
Read more about The AirGradient DIY Air Quality Sensor (Basic Version PCB Version < 3.0)Build your own open-source, open-hardware air quality monitor measuring PM2. 5, CO2, temperature and humidity. Replaced by newer instructions.
Read more about The AirGradient DIY Air Quality Sensor (Basic Version PCB Version 3.0)Build your own open-source, open-hardware air quality monitor measuring PM2. 5, CO2, temperature and humidity. Replaced by newer instructions.
Read more about The AirGradient DIY Air Quality Sensor (Basic Version PCB Version 4.0+)Pre-soldered version of the AirGradient DIY Pro air quality monitor. Replaced by newer instructions.
Read more about The AirGradient DIY Air Quality Sensor (Pro Presoldered-Version, PCB Version < 3.7)Pre-soldered version of the AirGradient DIY Pro air quality monitor. Replaced by newer instructions.
Read more about The AirGradient DIY Air Quality Sensor (Pro Presoldered-Version, PCB Version 3.7)Pre-soldered version of the AirGradient DIY Pro air quality monitor. Replaced by newer instructions.
Read more about The AirGradient DIY Air Quality Sensor (Pro Presoldered-Version, PCB Version 4.2)Larger and more extensible air quality monitor open-source instructions. Also available with professional enclosure and also as pre-soldered kit in our store. Replaced by newer instructions.
Read more about The AirGradient DIY Air Quality Sensor (Pro Version PCB Version < 3.7)Larger and more extensible air quality monitor open-source instructions. Also available with professional enclosure and also as pre-soldered kit in our store. Replaced by newer instructions.
Read more about The AirGradient DIY Air Quality Sensor (Pro Version PCB Version 3.7)Larger and more extensible air quality monitor open-source instructions. Also available with professional enclosure and also as pre-soldered kit in our store. Replaced by newer instructions.
Read more about The AirGradient DIY Air Quality Sensor (Pro Version PCB Version 4.2)Open source outdoor air quality monitor. Replaced by newer instructions.
Read more about The AirGradient DIY Outdoor Air Quality MonitorThese instructions are for our small beta tester group and contains a special firmware for testing purposes. This firmware only works for people in this pilot program.
Read more about The AirGradient DIY Outdoor Pilot ProgramKit version of the AirGradient Open Air Outdoor Air Quality Monitor. Replaced by newer instructions.
Read more about The AirGradient Open Air Outdoor Air Quality Monitor (O-1PST Kit, PCB Version 1.3)Pre-soldered version of the AirGradient Open Air Outdoor Air Quality Monitor. Replaced by newer instructions.
Read more about The AirGradient Open Air Outdoor Air Quality Monitor (Presoldered-Version, PCB Version 1.1)