HiLife Automatic Double Spring Aluminum Garden Tool Solar Heat Sensitive Ventilation of Greenhouse Agricultural Vent Window Opener

Features: Fully automatic greenhouse ventilation, prevent greenhouse overheating. Non electric, uses solar energy, open or close the greenhouse vents as temperature rises or drops. As the temperature changes automatically, maintains the best growing temperature and prevents your greenhouse from overheating.

Can be clamped onto or screwed onto your greenhouse frame. Specifications: Greenhouse Window Opener Kit Material: Stainless Steel Adjustable between 15°C~25°C (59°F~77°F) Maximum window opening: 45 cm/18 inch Maximum opening weight: 15 kg/33 lb Note: Make sure your window can open properly without blocking. Can not be used in the greenhouse temperature above 50°C.

Package Included: 1 x Automatic Window Opener Kit