The OMRON M2 Eco is a compact, fully automatic upper arm blood pressure monitor, operating on the oscilloscope principle. It measures your blood pressure and pulse rate simply and quickly. The oscilloscope method analyzes pulse waves collected from the cuff during constricted blood flow. Intellisense Technology For Quick, Comfortable And Accurate Measurement (enables the devices to inflate and deflate at the optimum level for each individual user, offering an accurate reading.)Packaging content The manufacturer produces M2 Eco with the applicable accessories included, necessary for the application of its intended purpose.