What is the accuracy of meters?

I worry glucose blood meter readings. Bayer outline meters, and when I test with control solution (supplied with the camera), gives a reading of 129 (average of five tests). Required Not 100? If I divide my reading of 1.29 real blood to correct control solution result set high? spent half an hour on the phone Bayer, with the people who gave me a lot of talk about marriage and, finally, admitted an error 30% is normal. So to get an accurate reading, I can divide this 1.29 meters say? Thanks in advance for any help here – it's very confusing.

DISCARD away and get a meter, called accucheck. I trust him. Your chances of error difference is about 11%, provided always if you compare going to get my blood lab test.

TEST STRIPS BLOOD GLUCOSEUSE W/9545 METERS 100/BX Bayer Healthcare LLC, Diabetes Care …

TEST STRIPS BLOOD GLUCOSEUSE W/9545 METERS 50/BX Bayer Healthcare LLC, Diabetes Care …

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