To determine the accuracy of the WatchBP Office ABI monitor for blood pressure measurement developed by the Microlife Company.

The device passed all three phases of the ESH protocol for SBP and DBP. For the BHS protocol the device was graded A for both SBP and DBP. The A/A grade was achieved in the low blood pressure category (< 130/80 mmHg), the B/A grade in the medium category (130–160/80-100mmHg) and the A/A grade in the high category (> 160/100 mmHg). Mean blood pressure difference between device and observers in the first 33 subjects was – 0.9± 5.5mmHg for SBP and – 2.2± 4.5mmHg for DBP and in the 85 participants it was – 1.2 ±6.5mmHg and – 2.3± 5.1, respectively.

These data show that the Microlife WatchBP Office ABI monitor satisfied the recommended ESH accuracy levels and achieved A/A grade of the BHS protocol across a wide range of BP.

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