For nearly a year I purchased this unit. At the time, it cost forty dollars more than today, but that's not what makes me regret this purchase. Every time I want to use it, I have to resume to me several times. Most of the time, it displays the message "Error of the measurement. Make sure the monitor is well positioned and the measurement is performed in good conditions." Now I'm the instructions carefully. I start and do not get a result (reliable?) The fourth or fifth time, so often I give up. This is better, however, because if I insist, this ends up being so annoying that I'm sure it raises my blood pressure! Great result! So should I take my blood pressure several times a week, I end up not touch the device once a month, and each time it's the same disappointment. The harm that I had was not to return it pronto. I thought I would eventually tame. But is the device that I have received is defective, or it is the manufacturer who is not serious to have marketed as a blood pressure of poor quality.
