How to Set Up Your AirGradient ONE Indoor Air Quality Monitor

What You'll Need

• AirGradient ONE
• Smartphone, tablet, or laptop with Wi-Fi
• 2.4GHz Wi-Fi network
• USB-C power cable and adapter
• Web browser

Step-by-Step Setup

1. Power On Device: Connect the AirGradient ONE to power. Wait for the blue LED to start flashing (10-30 seconds).
2. Connect to Device Hotspot: On your phone/laptop, find the Wi-Fi network named "airgradient-xxxxx" (xxxxx is your device serial number).
3. Enter Hotspot Password: The password for the AirGradient hotspot is "cleanair" (all lowercase).
4. Open Configuration Page: A configuration page should open automatically. If not, open a browser and go to 192.168.4.1.
5. Select Your Wi-Fi: Choose your home Wi-Fi network from the list. For hidden networks, enter the name manually.
6. Enter Wi-Fi Password: Enter your Wi-Fi password (not "cleanair" - that was just for the setup hotspot).
7. Uncheck Server Block: Ensure "Prevent connection to AirGradient servers" is unchecked if you want cloud features.
8. Complete Setup: The device will connect and begin sending data to the AirGradient dashboard.

Key Features

• Measures PM2.5, CO2, TVOC, temperature, and humidity
• Open-source hardware and software
• AirGradient cloud dashboard for data analysis
• Local API for Home Assistant integration
• Color-coded LED indicator for quick status
• Compact design with clear OLED display

Troubleshooting

• Blue LED not flashing: Wait up to 30 seconds after powering on. If still not flashing, power cycle the device.
• Can't find hotspot: Ensure you're looking for "airgradient-xxxxx" not your home network.
• Configuration page won't load: Make sure you're connected to the AirGradient hotspot, not your home Wi-Fi.
• 5GHz network not working: AirGradient only supports 2.4GHz Wi-Fi networks.
• WPA Enterprise/Captive portals: These network types are not supported. Use a standard WPA2 network.