1. Power on the device

• Turn the device ON using the battery power switch.

• If the device is already ON, turn it OFF first, then turn it ON again.

• The LED will turn solid blue.

2. Enter connection mode

• Hold the reset button for about five seconds, then release it.

• The LED will blink 5 times and the device will open a WiFi hotspot named:

airgradient-xxxxx

The xxxxx part is the device serial number.

While the WiFi hotspot portal is active, the LED will blink continuously.

3. Connect to the hotspot

Using your smartphone, tablet, or laptop, connect to the device hotspot.

Password:

cleanair

iPhone and iOS notes

The AirGradient hotspot does not provide internet during setup. This is normal, but some iPhones may try to leave the hotspot, reconnect to another WiFi network, or use mobile data instead.

If the WiFi Manager does not open, or 192.168.4.1 does not load:

• Stay connected to the airgradient-xxxxxxxxxxxx hotspot even if iOS shows "No Internet Connection".
• Temporarily turn off Cellular Data: Settings > Cellular > Cellular Data > Off.
• If your iPhone keeps reconnecting to your normal WiFi network, tap the info icon next to that WiFi network and temporarily turn off Auto-Join.
• Reconnect to the AirGradient hotspot and continue setup.

After setup is complete, turn Cellular Data back on and re-enable Auto-Join for your normal WiFi network if you turned it off.

Android notes

On some Android versions:

• Android 11 or 12 may show "Manage router". Tap it.
• Some versions may require tapping "Tap here to sign in to the network".

4. Open the WiFi Manager

The WiFi Manager should open automatically within about 10 seconds.

If it does not appear:

1. Open a web browser.
2. Enter 192.168.4.1 in the address bar.
3. Make sure you are still connected to the monitor hotspot.

5. Configure WiFi

On the WiFi Manager screen:

1. Press System Settings.
2. Change the connection mode to WiFi.
3. Select your WiFi network.
4. If your network is hidden, enter the SSID manually.
5. Enter the password for your WiFi network. Do not enter ‘cleanair’ here—that password is only for connecting to the device hotspot.
6. Click Save Setting.

The device should now connect to your WiFi network. The LED will be solid on confirming the WiFi credentials were saved and then turn off, indicating normal operation.

Switching back to cellular

To switch back to cellular, repeat the same steps and choose Cellular in the WiFi Manager under System Settings, then click Save Setting.

If you use a local SIM card, you may also need to enter the APN supplied by your mobile network provider. See Change the APN for a Local SIM Card.

Related articles

• Open Air Max: Device Overview and First Test
• Add the Open Air Max to the Dashboard
• Troubleshoot the Open Air Max
• Change the APN for a local SIM card