That's great! What does having the sensor refilled mean?

AlannaRobbiani: Each Libre comes as 2 parts. you assemble them then attach the sensor part to your arm. After two weeks it stops working and will kinda fall off so you do it all again.

lol it just shoots this into your arm. the needle is very small.

then you sync your phone to the sensor and boom, blood sugar readings

Ah, I see. Thanks!