A low glucose alarm* is initially set to 70 mg/dL but can be changed to a threshold between 60 mg/dL and 100 mg/dL on the FreeStyle Libre 3 app**.
* Notifications will only be received when alarms are turned on and the sensor is within 33 feet unobstructed of the reading device. You must enable the appropriate settings on your smartphone to receive alarms and alerts, see the FreeStyle Libre 3 User's Manual for more information.
** The FreeStyle Libre 3 app is only compatible with certain mobile devices and operating systems. Please check our compatibility guide for more information about device compatibility before using the app.