Title: Item is inaccurate
Review: I have been using it for a month. It is easy enough to use and seemed to work fine. However, when I went to my doctors this morning I brought it with me and was shocked at how far off the readings were. I tried several times with the help of the R.N. and never did the reading come within 20 points of what he got manually. I was very disappointed.
Is this product review negative?