I am looking to get some form of a barometer, digital or analog, that can be edced. If it is analog, it would have to be shockproof. I would prefer it measure the pressure in inches. In my area we have weather that is almost constantly turbulent. It would be nice to have something that could detect a change in the weather without being dependent on a cell phone or Weatherband receiver. I initially wantedthe one that was built into a Casio watch, but now I don’t want to pay that much. Ebay had some for cheap, but they looked just that-cheap. My maximum price I would want to pay is $40. Any ideas? My grandparents have an ancient banjo styled model hanging on their wall, but it constantly needs to be calibrated. Needless to say it is NOT that reliable. A desktop model would be nice as well.