The HBP-1320 Professional Blood Pressure Monitor is meant for measurement of blood pressure on the basis of the oscillometric principle. Includes Auto-Off feature and Rechargeable battery. Motion stop function (When body movement is detected, the device stops deflation for 5 seconds. People also askWhat does the heart symbols mean on Omron Blood Pressure Monitor?The Heartbeat Symbol ( ) flashes when the blood pressure reading stored in the memory is above 135 for the Systolic Blood Pressure value and/or above 85 for the Diastolic Blood Pressure value. “If the systolic blood pressure (the top number) on your cuff is within 10 points of the monitor, then it's generally accurate,” he says. Most home blood pressure machines last for about two or three years. After that, check it at your doctor's office annually to make sure it's still