Hi - I'm a new combo pump user. Do any old hands know what is the purpose of the 2 white dots on the black adaptor that you push onto the end of the cartridge?
It's not the battery cover - it's the cartridge cover, but you may be right i.e. that the dots are a help for people with poor eyesight. However, I suspect that they may not be able to do other things such as check for air-bubbles and see the insulin going up the plastic tube.