We have the equipment for several weeks in operation. It was a kind Notkauf because I have forgotten my device, which measures the wrist on a business trip and for blood pressure problems should be measured regularly. The more surprised I was about the performance of this product, which I was at that time no cost 30 euros. Okay, the collar is a little sharp-edged than those of Beurer and the housing or the material of the same suggests something the competitive price. But that does not detract from the performance. I'll take it now very happy here because the pump is operating more rapidly and also the annoying re-inflation is eliminated. Well, in patients with Bluckdruck about 150-160 systolic that will be needed here as well. But for me, the value of which is always around the 140, other devices pumps mostly for what only extended throughout the measurement process. The result remains the same. The deviation between the individual devices is a maximum of 5 mm / hg. This also shows that it need not always be expensive and the BU-92E is to use not only as a stopgap. With proper care, which is always attached with measuring equipment, and the less quality housing will last long. The Achilles heel is more of the cuff. I'll adjust the review in new resulting findings. Up to this point there is no doubt: just buy it