Upper Arm Digital Blood Pressure Monitor BM-28 has a universal cuff that is also suitable for larger upper arm circumferences up to 42 cm. The integrated cuff position control gives you additional certainty about the accuracy of the measured blood pressure values during each measurement.
Features:

• Universal cuff, including for larger upper arm circumferences up to 42 cm
• Fully automatic blood pressure and pulse measurement on the upper arm
• Average of all saved measured values
• Cuff position control
• 2 adjustable alarm times
• Easy-to-read display
• 4 x 30 memory spaces
• Risk indicator
• Arrhythmia detection
• Medical device
• For upper arm circumferences from 22 to 42 cm
• Date and time/automatic switch-off
• Incorrect usage message
• Low battery indicator
• Storage bag

Beurer BM 28 upper arm blood pressure monitor
The universal cuff means the device is also suitable for larger upper arm circumferences.

The standard location for blood pressure measurement is the brachial artery. Monitors that measure pressure at the wrist and fingers have become popular, but it is important to realize that systolic and diastolic pressures vary substantially in different parts of the arterial tree with systolic pressure increasing in more distal arteries, and diastolic pressure decreasing.The increasing use of electronic monitors for both self-and ambulatory monitoring has necessitated the development of standard protocols for testing them. The two most widely used have been developed by the BHS and Association for the Advancement of Medical Instrumentation (AAMI) in the United States. Both require the taking of three blood pressure readings in 85 subjects (chosen to have a variety of ages and blood pressures) by trained observers and the device being tested. The BHS protocol requires that a device must give at least 50% of readings within 5 mm Hg and 75% within 10 mm Hg with the two methods (grade B), and the AAMI requires that the average difference between the two methods not exceed 5 mm Hg with a standard deviation of less than 8 mm Hg. One of the limitations of the validation procedures is that they analyze the data on a population basis and pay no attention to individual factors. Thus, it is possible that a monitor will pass the validation criteria and still be consistently in error in a substantial number of individuals.

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