If anyone has any need for some expired Dexcom 7+ sensors, please message me. They expired in July of 2012 and my son can't find his transmittor; at this point we're just going to wait until he gets a new one to worry with it. Please send me a PM if you know of a home for them. Again, they are EXPIRED, so not sure if they are worth anything to anyone or not, maybe an art project??