M. A. T. Group Window opener for greenhouse

M. A. T. A window opener is an automatic opener that replaces manual opening. It is suitable for almost all polycarbonate greenhouses with gable roofs. It works on the basis of thermal expansion, so it prevents overheating in the hot summer, and prevents hypothermia on cooler days and at night. Opening the window opener M. A. T. simply adjust the temperature range from 15 °C to 25 °C, so that your greenhouse has the ideal conditions for its operation. No battery or electricity is required for operation. It is equipped with a piston with a control lever to replace the manual opening.