The Freestyle Libre 2 sensor is a continuous glucose monitoring system that measures glucose levels in the interstitial fluid. It offers outstanding accuracy, maintaining high accuracy through 15 days of wear. The sensor is compatible with the FreeStyle LibreLink app and the FreeStyle Libre 2 reader. Key features include extended sensor wear up to 15 days, partnerships with insulin pumps & smart insulin pens, and strong low-end performance. It also has an expanded age indication to children 2 years and older. The sensor continuously records glucose levels throughout the day and night. Readings can be obtained by scanning the sensor with the reader or a compatible smartphone. Each scan provides the latest glucose level and trend. The system stores data, with the ability to access the last eight hours of readings. Sensors are designed to be worn on the arm, avoiding areas with tattoos to ensure accurate results. If a sensor is damaged or not scanning correctly, it can be ended early and replaced with a new one. Compatibility information can be found on Abbott's official compatibility page.