I purchase a Dexcom G7 Receiver to monitor blood sugar's and it will not work. I called to return the Receiver after 4 days of use trying to get it to pair with the Dexcom G7 and it will not work correctly. Blood sugars are 40 to 50 points higher than the finger sticks and night time readings are terrible. Safe Rite sold me the receiver and said to contact Dexcom the manufacture, which I did and Dexcom said you need to call the Medical supply that sold you the receiver. Safe Rite will not take it back so, I am out of pocket almost $300.00. That is unfortunate. I would like people to know thar the Dexcom G7 Receiver is terrible, do not purchase it. Get a Phone with an OS of 12 or more and use the app, which is what I had to do. Good luck! read more