Been so long I can't remember. Guessing it's been about 20 years now on a pump. As for the CGM, I remember first testing one out that I had to wear around my neck in the shower, like a necklace in a waterproof bag. I couldn't see any results. Had to take it to the doctor to get a printout. That was probably 10-12 years or so ago? We've come a long way!