WRISTECH WRIST BLOOD PRESSURE MONITOR - FDA Approved - AS SEEN ON TV Review

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(More customer reviews)I purchased a Wristech JB4630 in January '10. The device arrived promptly, in good order. It is compact, convenient, easy to use, and remarkably inexpensive. However, its readings are disturbing. I made several runs of measurements without changing position of my arm, and with my arm and the device positioned according to the manufacturer's instructions. One such run was 111/63, 114/62, 131/60, 112/61, 105/56, 111/62, and 115/57. Another was 123/70, 130/69, and 130/70. Still another 126/67 and 115/67. Sorry for all the numbers, but they illustrate the problem. The readings usually cluster around a definite value. For instance, in the first set, if you throw out the 'fliers' (105/62 and 131/60) the mean systolic pressure is 112.6 and the maximum deviation is 2.4 -- quite good. But what about those fliers? There is no way to decide ahead of time whether a result is valid or not. The only solution with this product appears to be to take at least three measurements separated by a minimum of 15 seconds without moving your arm. Then throw out any obvious flier and average the remainders. If possible take the product to the doctors office and compare it with reading taking using the traditional stethoscope/sphygmomanometer (ausculatory) measurement. This device uses an oscillometric method that depends on a software algorithm. Such algorithms are not always accurate for all people under all conditions. For instance, if you suffer any type of arrythmia, they can give erroneous readings.
With proper care, this instrument can be useful, but should not be trusted for more than a casual indication of what your BP may be.

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Ordinary blood pressure monitors are bulky and hard to use but WrisTech is compact, lightweight and easy to use. All you do is put it on your wrist and push the button. WrisTech does the rest. In less than a minute the large, easy-to-read numbers tell you your systolic blood pressure, diastolic blood pressure and pulse rate. It even has a built in digital date and clock.

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