The ad ub 512 wrist blood pressure monitor is designed to be as easy to use and as comfortable as possible the simple one button operation takes the stress out of monitoring your blood pressure while the twin 30 reading memories mean you and your partner can track your blood pressure trend over a longer time period ensuring that you are quickly aware of any variations the irregular heartbeat feature helps you to pick up on any potential arrhythmia although it should only be taken as an in