With this device, we see immediately that we are not in the presence of a gadget. It is a rather heavy object, we will rather bulky enough reserve for regular use at home. The instructions well, detailed, used to configure this monitor and understand the operation. The setting: day hour ago ... is compulsory, otherwise no results will be displayed. Thanks to this device, it was accurate measurements of voltage and pulse 2 possible users. This provides the necessary monthly statistics if the voltage is a matter of concern, superfluous if one is satisfied with a measurement time to time. The voltage gain is rather simple and fast and the whole gives the impression of a professional device very similar to that used by the attending physician and as far as I've seen, as reliable. It must in my opinion to reserve the use of those who, without being a hypochondriac, have medical instruction accurately monitor their blood pressure over a period.