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Right. So I have received a replacement sensor (was posted very quickly), and after wearing for a few days (and only activating after 24 hours), seems to now underestimate the real blood sugar levels by 1/1.5 mmol/L, which is quite a lot. The first sensor overestimated most of the readings...

I have called them today, and after a very long wait, managed to talk to someone. He asked for three readings taken from a blood tester and the libre sensor, and calculated that the difference was more than 30% each time, so the sensor must just be faulty and will be replaced. He said maybe...

I have some health issues, and my doctor is not sure what the exact cause is. We noticed a high average blood sugar, which would put me in the diabetic range, so measuring with CGM is very much relevant to further diagnostic, and I am on a low carb diet now. I am sorry, but I don't understand...

To be honest, I don't really need to understand the complexities of it, or even how it works: as an end-user, it's either providing reliable (or at least consistent) readings/data or not (in which case, it's pretty pointless). Surely, most people using such device for the first time will...

Unfortunately, I can't put aside the inaccuracy I am experimenting, as the readings go up and down randomly (it's not just higher numbers than expected), without connection to what I am eating or exercise etc. I had a reading of 9.1 at 12:00 today, so 4.5 hours after breakfast, and before...

If the sensor insertion can consume glucose, does that mean the level measured would be lower then? All my readings are significantly higher than what they should be. Also, if the manufacturer knows that the first day or so could lead to random results, why don't they just discard the first...

I don't really get the point of placing it but not activating it. Surely, if it's not activated, it's in standby mode and not reading anything (otherwise, it would self activate once inserted). Therefore, what difference would that make??

Thanks. I will contact them tomorrow, and ask for a replacement if numbers are still out. It could just be a faulty sensor, and I would like to pursue the option of "constant" monitoring, as I would like to see if I have hypoglycemia during the night, or the impact of eating specific food...

I will have to check over the next few days, but if it's giving random figures, higher by 2.5 mmol/L than my other blood testers, then this is useless, either for spot checks or for averages. I have tested over the last 2 hours, and the sensor is still 2 mmol/L higher, so that's going to impact...

Thanks. I have measured over a period of an hour, and I am getting a difference of more than 2 mmol/L between the sensor and my regular blood tester. Given the breakfast I had (hardly no carbs) and no food for the previous 10 hours (with very little carbs for dinner), there are no reasons for...

Hi, I bought a Libre Sensor from Boots yesterday (£64, and they wouldn't remove VAT). Applied yesterday, and got readings after 1 hour. Everything seemed fine. A day later, I am getting completely wild readings. Before breakfast, the Libre sensor is reporting 6.6. 90 minutes after breakfast...