Yesterday I had to change one that I endured 3 days, but the hypos were unreal, the other night I did not let me be eye .... Abbott replenishes them directly, not the cap (I have it next to the house);I called and had 25 minutes on the phone asking me all kinds of questions ....
It is the second that changed in 3 months, the first was for the same as you fer, I put it on and did not read me after the time, waiting 10 min., 10 more, 10 more and so on up to 2 hours andIn the end he told me: Sensor exhausted.