AgaMatrix WaveSense Presto made by AgaMatrix Inc. is a next generation blood glucose monitoring system that uses dynamic electrochemistry to achieve highly accurate results. The accuracy requirement is that for readings greater than or equal to 75 mg/dL, a glucose meter needs to be within +/- 20% of the laboratory reference 95% of the time. That means that if a meter says 300 mg/dL the actual reading could be anywhere from 240 mg/dL to 360 mg/dL; that's a 120mg/dL margin of error! In a clinical study, WaveSense Presto has gotten excellent accuracy results, with 93% of its readings within +/- 10% of the laboratory reference. WaveSense does this by using a new technology that corrects for common sources of error that make blood glucose measurements inaccurate. So if you want a meter that is low cost, highly accurate and has a lot of the premium features in the market, choose AgaMatrix WaveSense Presto - Accuracy. Value.