Hi all......well I'm ready to throw my pump and sensors out of the window, yesterday i have been given the new sensors so i can use the smart guard feature........I must admit I've always used Dexcom or libre before and this Medtronic sensor is not great so far. So far after 12 hours the reading are completely off. I've been stable at around 10.3 all morning. This sensor has had me all over the place. It currently says 6.2 and dropping......I've rung the help line and they aren't much help. I'm concerned that this is what the smart guard features uses and is completely inaccurate.............am I just having very bad luck with my first sensor? Does it tend to do this in the first 24 hours? I've calibrated and still rubbish How am I meant to trust this technology? Andrea