Review on Sper Scientific 736930 Barometer: Accurate Weather Forecasting Device for Precise Measurements by Quinton Wonsley

Second order of this barometer. The first didn't work at all; I have followed all the instructions completely. I installed it right next to my very old 30 year old barometer and watched it for two weeks. There is no needle movement at all. After I returned the first and received the second, I set it up the same as the first. This time the arrow went up with pressure and never stopped. Meanwhile, my 30-year-old barometer bounced up and down twice in two weeks.