The FreeStyle Libre system
An innovative flash glucose monitoring system that uses sensors: 
Scan The Sensor For Glucose Reading for Painless, one-second scan instead of finger pricks
 
The FreeStyle Libre flash glucose monitoring system is indicated for measuring interstitial fluid glucose levels in adults aged 18 years and older with diabetes mellitus. Always read and follow the label/insert.
 
The FreeStyle Libre 2 system
The next-generation flash glucose monitoring system:
The FreeStyle Libre system you know and love, now with optional glucose alarms
 
The FreeStyle Libre 2 sensor measures and continuously stores glucose readings day and night. The sensor updates the glucose result every minute and stores up to 8 hours of glucose readings, in 15-minute intervals. Can be worn for up to 14 days.
 
The FreeStyle Libre 2 flash glucose monitoring system is indicated for measuring interstitial fluid glucose levels in people aged 4 years and older with diabetes mellitus. Always read and follow the label/insert.