POWERplus® Seal Solar powered WEATHERSTATION Clock/Calendar/Thermometer The POWERplus Seal is a state-of-the-art solar powered weather station, clock and 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 and temperature and can therefore give a good indicative forecast of the weather.