The POWERplus Seal is a state-of-the-art solar powered weather station, clock & calendar. Featuring the World’s first solar powered barometer made possible by using highly energy efficient technologies. The highly accurate sensors of the Seal measure the weather conditions such as actual pressure, development of pressure during the day & temperature & can therefore give a good indicative forecast of the weather. The high quality solar panel is integrated in the base of the Seal & becomes a natural part of the beautiful design of the product. The solar panel charges the internal Ni-MH batteries, so even without sunlight the Seal can make its measurements & display the information. For periods of no sunlight over a long period of time, the Seal has the option of a back-up battery.