The Omron RS4 is an automatic wrist blood pressure monitor that uses the oscillometric method of blood pressure measurement. When the cuff inflates, this monitor senses the pressure pulsations of the artery underneath the cuff. The pulses are called oscillometric pulses. The electronic pressure sensor displays a digital reading of blood pressure. Easy, portable, and accurate for all body sizesLED Positioning Sensor - for accurate resultsIntellisense Technology - Measurement without unnecessary over-inflation of the cuffCuff Wrap Guide - Indicates if the cuff is wrapped correctly: not too loose or too tightIrregular heartbeat detection - Indicates if an irregular heartbeat is detected during the readingMorning hypertension trackerHypertension IndicatorIndicates if hypertension is detected at the end of reading1 user x 60 memories