System Overview

The System has two main parts: a handheld Reader and a disposable Sensor that you wear on your body. You use the Reader to wirelessly scan the Sensor and display your glucose readings. The Reader only works with FreeStyle Libre 2 Sensors and cannot be used with other Sensors. When they're in range, the Sensor and Reader automatically communicate to give you glucose alarms. These alarms are on by default. Remember that alarms you receive will not include your glucose reading, so you need to scan your Sensor to check your glucose.

  • Before you use your System, review all the product instructions and the Interactive Tutorial. The Quick Reference Guide and Interactive Tutorial give you quick access to important aspects and limitations of the System. The User's Manual includes all safety information and instructions for use.
  • Go to to view the "Tips for Kids".
  • Talk to your health care professional about how you should use your Sensor glucose information to help manage your diabetes.
  • During the first 12 hours of Sensor wear the symbol will display, and you cannot use Sensor values to make treatment decisions during this time. Confirm Sensor glucose readings with a blood glucose test before making treatment decisions during the first 12 hours of Sensor wear when you see the symbol.