These Dexcom G6 sensors measure your glucose levels continuously and send data wirelessly to a display device via transmitter. The Dexcom G6 Sensors provide an accurate, automated, and continuous glucose-monitoring system to help manage your diabetes. With a clinically proven accuracy of +/- 8.5%, they help you make informed decisions regarding your blood glucose levels while keeping you informed every 5 minutes. They are discreet and painless to use, making managing your diabetes easier than ever.