A low glucose alarm^{^} is initially set to 3.9 mmol/L but can be changed to a threshold between 3.3 mmol/L and 5.6 mmol/L on the FreeStyle Libre 3 app^◊◊.

^ Notifications will only be received when alarms are turned on and the sensor is within 33ft unobstructed of the reading device.

◊◊ The FreeStyle Libre 3 app is only compatible with certain mobile devices and operating systems. Please check our website for more information about device compatibility before using the app. Sharing of glucose data requires registration with LibreView.