Flashing green: once every 5 seconds: Normal operation, monitor is recording data.

Flashing green once per second: Radon test scheduled, monitor in delay period.

Flashing green, yellow, and red sequentially: Monitor rebooting and performing self-test

Flashing yellow: Indicates a warning but is still operational. This usually means that the monitor needs to synchronize the date, time, and time zone. Connect to the monitor through the app and start a test to synchronize.

Flashing red: Error. Press the RESET button for 3 seconds (round button). Once it is done flashing, open the app and connect to it. Start a test. If this does not resolve the issue, replace the batteries. If the red light still persists, contact technical support.

Blue flash and beep: Bluetooth connection established.

Blue flash (once): Bluetooth connection ended.

Continuous blue: USB connected for CRA usage.