I ordered this device because it has given me her very much by design and features. The price seemed to be ok. Of course I had also read customer reviews, but I refused to believe sorecht that a battery set (4 pieces) just for 20 - to reach 30 measurements. I was disabused because after 32 measurements gave the batteries up the ghost. This is unacceptable, because there are devices that allow more than 1,000 measurements with one set of batteries. And if you have blood pressure problems, sometimes you have to repeatedly measure a day. It is a pity that this particular criticism was also the sticking point for me to return the meter, because everything else I liked very well. In particular, the accuracy and the large display were very good.