What components are included in the FreeStyle Libre system?
The FreeStyle Libre 2 and 3 systems consist of two main components: a handheld reader or mobile application, and a small, disposable sensor worn on the back of the upper arm. The sensor can continuously measure glucose levels for up to 14 days with FreeStyle Libre 2 Sensor and 15 days with FreeStyle Libre 3 Plus Sensor .