Early days but my third sensor is scanning at about 2.0 mmol/L lower than a BG reading taken with the Libre which in turn is reading about 0.5 mmol/L lower than my Contour Next USB.
Now, my current problem. I prefer my sugars to hover around the 4.4 mmol/L mark pre meal as registered by my Contour - the same BG reading from the Libre is about 3.8 mmol/L which I'm fine with but the scan reading will flat line at LO as the scan will not register mmol/L below 2.2 mmol/L.
So - unless the scans get considerably closer to BG readings I would have to allow higher pre meal glucose levels if I want to track trends - this I will not do.
More problematic is that once the scan is at 2.2 mmol/L or LO I have no idea if my glucose level is remaing level or dropping.
If the scans were consistently higher than BG readings I could just mentally adjust the scan to give the equivalent BG reading but I can't when it's 2mmol/L or more lower![]()
Yeh same problem here but for different reasons. The limited range you can set the numbers at it is too restrictive. I want to set my lowest normal level to 3.6 but it won't let me. 3.9 is the lowest it lets you set, so it starts flagging low BGs way too high for me - it flags them when you're in the mid to low 4s. It's now recorded me as having low BG for a while today because I was at 3.9 - that's a normal level for me - even DAFNE doesn't call it a hypo until below 3.5. I just don't understand why they've restricted it like this.
I think your sensor will get more accurate BTW - mine has.
Smidge