I have had a Medtronic 780g with Guardian 4 sensors since May this year. I travelled by car through Spain in the summer, took loads of spare sensors with me as I was away for two months. However, on reaching my destination then found that half the sensors didn’t work. Initially couldn’t work out why but guessed it was the heat in the car. I was in a complete panic as my supplies wouldn’t have lasted, fortunately Medtronic Portugal sent me some spares but this has put me off travelling anywhere hot outside Europe with no back up. Does anybody have any tips on transporting spare sensors in the heat? Airlines are good in that you can take them separate to hand luggage but this doesn’t solve the heat problem.