Wrist blood pressure monitor is a small portable monitor that allows you to measure systolic and diastolic blood pressure on the go. Based on oscillometric and silicon integrated pressure sensor technology, the Advocate wrist blood pressure monitor allows you to non-invasively measure your blood pressure easily and accurately. Features include: Large LCD display for better visibility, Large memory of up to 90 tests with date and time, super low noise air pump, automatic turn off, irregular heart beat detection and includes 2 AAA batteries.