FreeStyle Libre 2 Sensor Unlike traditional blood glucose monitoring, you can get your glucose reading without those painful finger pricks with the FreeStyle Libre 2 system.The FreeStyle Libre 2 sensor is made by a process which means the sensitivity of the sensors vary very little. This means that it is calibrated at the factory, so you don’t need to calibrate it again using a finger prick.The FreeStyle Libre 2 Sensor continuously measures the glucose concentration in your interstitial fluid, and stores up to 8 hours of data. FreeStyle Libre 2 Sensor Features: Small size and comfortable to wear - About the size of two stacked US quarters, the sensor may be scanned through clothing. Painless application - A very thin filament sits just under the skin to measure interstitial fluid. Accurate sensor readings - No fingerstick calibrations required, and the system has no interference with medications containing acetaminophen. Water resistant -Stays on the body for up to 14 days, and can be worn while swimming, showering, or exercising. Continuous monitoring - Continuously measures the glucose concentration in your interstitial fluid, and stores 8 hours of data. FreeStyle Libre 2 Sensor Includes: 1 Sensor 1 Sensor Applicator Product Insert Reader not included