One can indeed expect miracles, and the forecasts for the next few days you have to watch to be currently constantly. Ie who draufschaut once and relies on the next day on the forecast - is abandoned and does not understand the system. The prediction is described in the information always updated several times a day. Therefore, the weather for the day can quickly deteriorate times significantly. Basically, this is but a good system, I nevertheless more confident than a pure air pressure display with corresponding history. Previously I had the barometric pressure reading, but from the course I could not interpret out more accurate, was formerly just standard. The device looks good, is well-made and provides a clear indication of the really important data. Startup problems.