Individuals who routinely rely on outdoor devices for blood pressure monitoring should always write down the number and compare it with the number obtained in the physicians’ office. If there is a difference of more than 10 mmHg, then the outside machines are useless. For machines to be valid, the difference in blood pressure must be less than 5 mmHg.
Many studies have indicated that automated blood pressure devices in the malls do not meet the criteria in terms of accuracy or reliability of measurements. Those individuals who have high blood pressure should get their measurements done at a health clinic or an outpatient medical facility.
