The urgent low glucose alarm†‡ is turned ON by default and will sound when your glucose falls below 55 mg/dL. This alarm cannot be turned OFF or otherwise changed by the user of the FreeStyle Libre 2 app*.
† To get the Urgent Low Glucose Alarm on your phone with the FreeStyle Libre 2 app, you will first need to start your Freestyle Libre 2 sensor with your phone. If you do not start your FreeStyle Libre 2 sensor with your phone, you will not get the Urgent Low Glucose Alarm on your phone.
‡ Alarm notifications will only be received when alarms settings are enabled and turned on and sensor is within 20 feet unobstructed of the reading device.
* The FreeStyle Libre systems apps are only compatible with certain mobile devices and operating systems. Please check the Support section of our website for more information about device compatibility before using the apps. Use of the FreeStyle Libre systems apps may require registration with LibreView.