The electrical systems of control, automatisms, allow the automated handling of mostt of daily tasks of maintenance and production, so as regulating the climate from home and increasing the yield of the instalations. Many systems of climatic regulation help us to control some climatics factors: windows, heating, screens, ventilators, … With the use of climatic controllers the use of any system of regulation is maximized, this means a better control and an incrase of the quality and quanty of the harvest.