The highly accurate sensors measure the weather conditions such as actual pressure, development of pressure during the day and temperature and can therefore give a good indicative forecast of the weather. The high quality solar panel is integrated in the base and becomes a natural part of the beautiful design of the product. The solar panel charges the internal Ni-MH batteries, so even without sunlight it can make its measurements and display the information. For periods of no sunlight over a long time, it has the option of a back-up battery.