Abbott FreeStyle Libre 2 User Manual page 23

Symbol What It Means
When you see this symbol during the first 12 hours
of wearing a Sensor, confirm Sensor glucose readings
with a blood glucose test before making treatment
decisions.
Notes
+
Add more information to notes
Food note
Rapid-acting insulin note
Time changed on Reader
Blood glucose test
Settings
Control solution test result
Low battery
Battery charging
Sensor too cold
Sensor too hot
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