The Aranet Radon One sensor is calibrated in the factory, and it works instantly when it you take it out of the box and insert the batteries – no additional setup is needed. These are the default settings of the Aranet Radon One sensor:
The default radon measurement units are set to Bq/m3;
Bluetooth connection is enabled;
Bluetooth connection transmission range is set to normal;
The buzzer for audio sound alarm notifications is disabled;