How do glucose alarms work on the Libre app?
Note: The Urgent Low Glucose Alarm†‡ is turned ON by default and cannot be turned off.
† Alarm notifications will only be received when alarms settings are enabled and turned on and sensor is within 20 feet (FreeStyle Libre 2) or 33 feet (FreeStyle Libre 3) 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.
‡ To get the Urgent Low Glucose Alarm on your phone with the FreeStyle Libre systems apps, you will first need to start your FreeStyle Libre systems sensor with your phone. If you do not start your FreeStyle Libre systems sensor with your phone, you will not get the Urgent Low Glucose Alarm on your phone.
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