The POWERplus Seal is a state-of-the-art solar powered weather station, clock and calendar and features 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 and inside temperature and can therefore give a good indicative forecast of the weather. The high quality solar panel is integrated in the base of the Seal 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 the Seal can make its measurements and display the information. For periods of no sunlight over a long time, the Seal has the option of a back-up battery PowerPlus Seal features: - Pressure trend - Forecast weather graphics - Temperature (inside) - Actual pressure (digital barometer) - Humidity measurement - Clock and calendar function PowerPlus is one of europe's leading solar powered product manufacturers and you can see the range of their products we stock just by using the search box on the right hand side, or have a look at all the solar powered products in the "solar powered products" section.