Do FreeStyle Libre 2 sensors have different serial numbers than FreeStyle Libre sensors?
FreeStyle Libre 2 sensor serial numbers start with ‘3’ so that they are distinguishable from FreeStyle Libre sensors.
Do not ignore symptoms that may be due to low or high blood glucose. If you have symptoms that do not match the Sensor glucose reading or suspect that your reading may be inaccurate, check the reading by conducting a finger stick test using a blood glucose meter. If you are experiencing symptoms that are not consistent with your glucose readings, consult your health care professional.