This article describes basic connectivity requirements for Glow.
Glow Device Connectivity
Glow requires a constant WiFi connection in order to function. Glow uses WiFi to send air quality information to our cloud server, and relayed data back to your phone via the Awair app. When Glow is disconnected from WiFi, it will appear grey in the Awair app and the light on the device will begin blinking. If Glow is disconnected from WiFi for more than 30 minutes, it will trigger the Automatic Shutoff feature, which will turn off the device. This feature can be disabled in the device settings page of the app. Triggers, integrations, historical data, and other preferences will be saved if Glow is disconnected from the internet.
Glow communicates directly with your smartphone using Bluetooth Low Energy (BLE). Glow requires Bluetooth for the initial pairing process during setup, but afterwards can be controlled entirely by WiFi.