The device for automatically ventilating the greenhouse is made in the form of a ventilation window of the greenhouse, it contains a frame, an outer polycarbonate sheet, an inner polycarbonate sheet that is shorter in size than the outer polycarbonate sheet, fixed in the frame. The inner polycarbonate sheet and the outer polycarbonate sheet have windows, which, in turn, are arranged in rows along the entire surface of the outer polycarbonate sheet and the inner polycarbonate sheet and are designed so that when the inner polycarbonate sheet is shifted upward, the windows open and, when shifted downward, are closed by the outer surfaces polycarbonate sheet and inner polycarbonate sheet. With increasing air temperature in the greenhouse, the working fluid in the hydraulic cylinder expands and drives the piston of the hydraulic cylinder, which displaces the inner polycarbonate sheet through the hydraulic cylinder rod. The inner polycarbonate sheet and the outer polycarbonate sheet are connected by the attachment unit of the outer polycarbonate sheet and the inner polycarbonate sheet, which is configured to move the inner polycarbonate sheet up and down through the slot in it. In addition, a compression spring is freely mounted on the hydraulic cylinder, which is mounted on the hydraulic cylinder, fixed at one end to the frame and at the other end to the attachment unit of the hydraulic cylinder rod to the smaller movable sheet, thereby contributing to the displacement of the inner polycarbonate sheet and its return to its original position.Устройство для автоматического проветривания теплицы выполнено в виде вентиляционного окна теплицы, содержит раму, наружный лист поликарбоната, внутренний лист поликарбоната, меньшего по длине размера, чем наружный лист поликарбоната, закрепленные в раме. Внутренний лист поликарбоната и наружный лист поликарбоната имеют окошки, которые, в свою очередь, расположены рядами по всей поверхности наружного листа поликарбоната и внутреннего
