Greenhouse Window Opener Vent Autovent Solar Heat Sensitive Automatic Greenhouses Roof

Features:
Prevent greenhouse overheating.
Ideal for your greenhouse window--opens and closes your greenhouse window.
As the temperature changes automatically, maintains the best growing temperature and prevents your greenhouse from overheating.
Non electric, uses solar energy, open or close the greenhouse vents as temperature rises or drops.
Can be clamped onto or screwed onto your greenhouse frame.
Specifications:
Greenhouse Window Opener Kit
Material: Aluminum Alloy
Fully adjustable between 20 - 25 ° C (68 - 77 ° F)
Maximum opening weight: 7kg/15lb
Size: Approx. 38x9.5x5cm / 15.0x3.7x2.0in

Features

1、Ideal for your greenhouse window--opens and closes your greenhouse window.
2、As the temperature changes automatically, maintains the best growing temperature and prevents your greenhouse from overheating.
3、Non electric, uses solar energy, open or close the greenhouse vents as temperature rises or drops.
4、Can be clamped onto or screwed onto your greenhouse frame.
5、Prevent greenhouse overheating.