The FreeStyle Libre 2 Plus is a 15-day glucose sensor. In the U.S., it’s authorized to connect to the Tandem t:slim X2 insulin pump. In other words, insulin can be automatically delivered to your body when you need it because the pump works with the sensor to adjust insulin dosing...
First, the reader/receiver is a handheld device -- or an app on your smartphone/smart device -- that receives your sensor glucose readings and shows the history of your readings and helps you see when your levels are trending up or down. ...