Skip to main content

What’s Inside the AirGradient Open Air?

Here’s a quick overview of the main parts inside the device:

1. Open Air Mainboard

The mainboard includes:

  • An ESP32-C3 microcontroller that handles processing, Wi-Fi connectivity, and data transmission
  • Connectors and pin sockets for all sensor modules
  • Power management and onboard circuitry

This board coordinates sensor readings and sends data to the AirGradient dashboard or your own integrations.

2. Plantower PMS5003T PM Sensor

This pre-mounted sensor measures:

  • PM1
  • PM2.5
  • PM10
  • Temperature

3. SenseAir S8 / S88 CO₂ Sensor Module

This NDIR (Non-Dispersive Infrared) sensor measures carbon dioxide (CO₂) levels.

4. SGP41 TVOC / NOx Sensor Module

This sensor measures:

  • TVOC (Total Volatile Organic Compounds)
  • NOx (Nitrogen Oxides index)

Modular by Design

One of the key advantages of the AirGradient Open Air is its modular design.

This means:

  • Sensors can be replaced individually if needed
  • Maintenance is easier
  • Future upgrades are simpler

This open and repairable approach helps extend the life of the monitor and supports long-term reliability.

Back to top