Elprico Window Opener Kit, Greenhouses Roof Window Opener Solar Heat Sensitive Automatic Vent Overheating Protective Pole Greenhouse Roof Opener

• 【Aluminum Alloy Material】--This solar heat sensitive is made of aluminum alloy material ,high quality.It can prevent greenhouse overheating.
• 【 Features】--Ideal for your greenhouse window--opens and closes your greenhouse window.Can be clamped onto or screwed onto your greenhouse frame.
• 【Automatically Change】--The greenhouse window opener kit is as the temperature changes automatically, maintains the best growing temperature and prevents your greenhouse from overheating.
• 【Solar Energy】--Non electric, uses solar energy, open or close the greenhouse vents as temperature rises or drops.
• 【Specifications】--Fully adjustable between 20 - 25 ° C (68 - 77 ° F);Maximum window opening: 45cm / 18 inch;Maximum opening weight: 7kg/15lb.

Feature: 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. Spec: Greenhouse Window Opener Kit Material: Aluminum Alloy Fully adjustable between 20 - 25 ° C (68 - 77 ° F) Maximum window opening: 45cm / 18 inch Maximum opening weight: 7kg/15lb Size: Approx. 38x9.5x5cm / 15.0x3.7x2.0in Package: 1 x Automatic Window Opener Kit Notes: Do not use this opener anywhere the temperature will exceed 50° (122F) Please ensure your greenhouse window can be opened freely by at least 45cm (18) Do not apply excessive loads by locking or covering window Do not dismantle the cylinder The opener CANNOT stop by manual Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.