"Offers improved performance through the smallest and most comfortable glucose sensor from Medtronic1. The Guardian™ Sensor 3 is inserted just under skin, accurately measuring glucose values and relays these values to your insulin pump Our most accurate sensor with a MARD* rating of 8.7%2 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 For use with the MiniMed™ 670G and MiniMed™ 630G systems."