Taking your blood pressure is simple with the M3 monitor. The Monitor has a wide cuff (22–42 cm) that can be adjusted to suit a variety of arm sizes, and the cuff wrapping guide icon lights up when the cuff is wrapped correctly, allowing you to feel more confident about the accuracy of your results.Omron M3 is also equipped with a memory function that allows for two users and you can store up to 60 readings each.Accuracy as well as comfort is ensured with Intellisense technology, which always inflates the cuff to the peak pressure that is tailored to your own blood pressure level, ensuring a more comfortable measurement.Every OMRON blood pressure monitor is tested for accuracy against the clinical guidelines for measuring blood pressure that are specified by the European Society of Hypertension meaning it has undergone tests conducted by independent doctors according to a predetermined protocol, which includes ensuring the accuracy of the measurements (algorithm) of the blood pressure monitors.OMRON's M3 allows you to measure your blood pressure with ease and accuracy in the comfort of your own home in just a few steps. After positioning yourself and the cuff, it's simply a matter of turning the machine on, pressing start, and then recording the measurement.