Why is my device showing an error?
Your radon sensor is sensitive to high humidity and sudden temperature changes. In most cases, this error is temporary and it simply means the sensor is uncertain about its current readings and needs time to recalibrate. This is not a sign of permanent damage.
How to fix it
Follow these steps to dry out and reset your device:
Remove the 3 batteries from the device.
Move the device to a drier room (such as a living room) and leave it there for at least 24 hours, a few days is ideal.
Reinsert fresh alkaline batteries. The device will restart and resume normal operation.
The error message should clear once the sensor has had time to stabilize in a drier environment.
Still seeing the error?
If the error persists after following the steps above, please reach out to our support team:
💬 Chat with us using the chatbot on this page, or
📧 Email us at support@airthings.com
When contacting us, please include:
A photo of the front of your device showing the error code
A photo of the back of your device showing the serial number
A copy of your invoice as proof of purchase