The FreeStyle Libre 2 reader displays the glucose data collected by the sensor. An easy 1-second scan shows the current glucose reading, the latest 8 hours of glucose data and a trend arrow showing if glucose levels are going up, down or changing slowly.Contents: 1 FreeStyle Libre 2 Reader1 USB Cable1 Power Adapter1 User's manual1 Quick start guide1 Performance data sheetNote: The FreeStyle Libre 2 reader is only compatible with FreeStyle Libre 2 sensors (Sensor Sold Separately). FreeStyle Libre 2 sensors can also be scanned with the FreeStyle LibreLink app on a compatible smartphone.