I had bought this device in order to keep my blood pressure a bit in the eye. At the last stress test blood pressure monitoring (4 months ago) everything was fine. The instrument can be applied well and simply. The measurement results were alarming. The measurements were for several days nearly all in red and orange range (eg. Ex. 157 / 112mmHg). I then took the device to your next appointment. We have there a comparative measurement made with the result: doctor measurement: 129/84 mmHg Sanitas SBC41: 154/119 mmHg This was the cause of "hypertension" recognized and I have returned the device immediately.
