FreeStyle Libre 2 Sensor

About this item The FreeStyle Libre 2 Sensor offers continuous glucose measurement without routine fingersticks and adds optional Bluetooth-enabled alerts for high, low, and urgent-low glucose. The sensor is worn on the back of the upper arm and continuously measures glucose in the interstitial fluid, storing readings automatically. You can view glucose levels, trend arrows, and 8-hour history by scanning the sensor with your FreeStyle Libre 2 reader or compatible smartphone app. The addition of real-time alarms helps users stay ahead of unexpected glucose changes — even without scanning. The sensor is small, discreet, water-resistant, and designed to stay in place throughout normal daily activities like showering, exercising, and sleeping. It is easy to apply with the included one-piece applicator and provides up to 14 days of continuous glucose monitoring. Important: Always follow Abbott’s instructions for sensor application and use. If glucose readings do not match symptoms, verify with a blood glucose meter before making treatment decisions.   PRODUCT DETAILS System Type: Flash Glucose Monitoring (FGM) with optional real-time alarms Glucose Measurement Frequency: Measures every minute; stores readings every 15 minutes Wear Duration: Up to 14 days Indicated Age Range: Users 4 years and older (pediatric adult) Application Site: Back of the upper arm Calibration Requirement: No routine fingerstick calibration required Alert Features: Optional high glucose, low glucose, and urgent-low alarms via Bluetooth Reader/Display Compatibility: FreeStyle Libre 2 Reader FreeStyle LibreLink app (device-dependent) Scan Requirement: Must scan at least once every 8 hours to capture full glucose history Water Resistance: Designed to withstand normal water exposure (bathing, exercise, light swimming) Intended Use: Continuous glucose tracking and real-time alerts for diabetes management   Feature Dexcom G6 Dexcom G7 Libre 14-Day Libre 2 Libre 2 Plus Libre 3 Libre 3 Plus Wear Duration 10 days 10 days 12hr grace 14 days 14 days 15 days 14 days 15 days Real-Time Data (No Scan Needed) ✔ Yes ✔ Yes ✖ No (scan required) ✖ No (scan required) ✖ No (scan required) ✔ Yes (auto) ✔ Yes (auto) Alerts (High/Low/Urgent Low) ✔ All alerts ✔ All alerts ✖ None ✔ High/Low ✔ High/Low/Urgent Low ✔ All alerts ✔ All alerts Warm-Up Time 2 hours ~30 minutes 12 hours 1 hour 1 hour 1 hour 1 hour Accuracy (MARD) ~9% ~8% ~9.4% ~9.2% ~9.2% ~7.9% ~7.9% Age Indication 2 years  2 years 18 4 years 2 years 4 years 2 years Related