Wrist blood pressure monitor has pressure sensor and can measure blood pressure 30-280 mmHg (±3 mmHg) and pulse 40-199 beats/min ( ±4%). It automatically inflates and deflates using the oscillometric measurement method. The battery source is two AAA and there is a low battery indicator. The antimold and anti bacterial C type cuff is135-195mm in size. Displays date/time. Stores up to 60 readings.