Auto Vent Opener Automatic Greenhouse Window Opener Cylinder Roof Vent Opener Autovent Kit Solar Heat Sensitive Agriculture Gardening Tools Automatic Greenhouses Supplies (Single Spring Lifts 15 Lbs)

🌞【OPTIMAL VENTILATION】Your plants are optimally ventilated through temperature-controlled opening and closing. Depending on the temperature, the piston of the cylinder moves and opens or closes the window.
🌞【Premium Material】The window opener is made of high quality aluminum alloy, Durable and Anti-rust , makes it has a longer servies time. Maximum opening about: 30°. Maximum opening weight: 7kg/15lb.
🌞【Solar Heat Sensitive】Non electric, our window vent opener uses solar energy. The automatically adjusted temperature is 15 to 25°C. When the temperature exceeds 25 degrees, the window regulator will remain open. The temperature drops to 15-18 degrees Celsius and the opener will close completely.
🌞【INDIVIDUALLY ADAPTABLE】Can be installed quickly and easily for the windows of common garden and greenhouses. You can steplessly adjust the opening angle by turning the cylinder and thus achieve the right ventilation for your bed.
🌞【Ideal for Your Greenhouse Window】The greenhouse window opener can be clamped onto or screwed onto your greenhouse frame, opens and closes your greenhouse window.