See the markets best greenhouse auto vents. We have made window openers for more than 30 years, and is the world’s leading manufacturer. Find your perfect greenhouse auto vent in our wide selection.
Go to the section with our temperature sensitive hydraulic cylinders. You can acquire the cylinders in different lengths and temperature sets as well as equip them with a variety of different mounting elements.
Please take a look at our 3D mounting instruction videos.
Window openers for Greenhouses – Automatic vent opener
J. Orbesen teknik ApS automatic window opener – We believe in high quality products and quality service.
J. Orbesen Teknik ApS has focus on window openers for hobby greenhouses and has been the core business since 1981. In those +30 years, we have become the market leader for window openers, and are currently exporting the openers to all over the world.