* Within ±0.83 mmol/L of lab results at concentrations of under 4.2 mmol/L
* Within ±20% of lab results at 4.2 mmol/L or more
Companies are juggling cost, reliability and performance/accuracy, with the first two generally winning in the marketplace as key selling points.
Some devices offer significantly better accuracy than 20%, depending on the market that you are in (not all are for sale in USA, IIRC).
* Within ±0.83 mmol/L of lab results at concentrations of under 4.2 mmol/L
* Within ±20% of lab results at 4.2 mmol/L or more
Companies are juggling cost, reliability and performance/accuracy, with the first two generally winning in the marketplace as key selling points.
Some devices offer significantly better accuracy than 20%, depending on the market that you are in (not all are for sale in USA, IIRC).