The FreeStyle Libre 3 Sensor captures glucose readings every minute and automatically sends it to your patient's smartphone with the FreeStyle Libre 3 app. If the FreeStyle Libre 3 Sensor loses signal with the app, the Sensor will continue to capture glucose readings every minute. Once reconnected, the FreeStyle Libre 3 app will show glucose readings from the FreeStyle Libre 3 Sensor captured during the period of signal loss.