Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Inaccurate, misleading

This monitor is off by at least 30. My BP is shown constantly normal using the monitor, but every visit to doctor office, or even the free BP monitors at drug stores telling total different stories. Some folks said it might be the proper way to use, e.g. relax hand, sit still with back supported, support front arm with heart level...etc etc. I believe I attempted the best possible position to use the monitor according to its manual, but the readings are still way off from reality. I do NOT recommend anyone to use it.