Medtronic Guardian 3 Sensor
The Guardian Sensor 3 offers improved performance through the smallest & most comfortable glucose sensor from Medtronic. The Sensor is inserted just under the skin, accurately measuring glucose values and relays these values to your pump. It is the first and only continuous glucose monitoring sensor that is FDA approved and trusted to control dosing. Plus you can wear it up to 7 days!
MiniMed Guardian Sensor 3 Features: 
Medtronic’s most accurate sensor with a MARD* rating of 8.7% using the CONTOUR®NEXT LINK 2.4 Meter
Easy to insert
Flexible design moves with your body for ultimate comfort
Know at all times where your glucose levels are trending
Contains 5 MiniMed Guardian 3 Sensor
For use with the MiniMed™ 670G and MiniMed™ 630G systems.