Automatic Window Vent Opener

Automatic window opener for garden- and greenhouses This temperature controlled opener will automatically open and shut your greenhouse window to maintain the best growing temperature. Very simple to fit to all common garden- & greenhouse windows. The piston of the cylinder automatically opens and closes the window depending on the temparature. Adjust the opening angle by turning the cylinder. It is infinitely variable and always maintains the perfect growing temperature and ventilation for your plants and vegetables. Mounting material for wood and aluminium greenhouses is included in the delivery. Product advantages : - Suitable for windows of all common garden- & greenhouses out of aluminium, polycarbonate or wood- Ultralight design : Easy to transport and fit- Automatically opens and closes your greenhouse window as the temperature changes.- Perfect ventilation of your garden