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:

Material: Aluminum Alloy

Fully adjustable between 20 - 25 ° C (68 - 77 ° F)

Maximum window opening: 45cm / 18 inch

Maximum opening weight: 15kg/30lb

Package:

1 x Automatic Window Opener Kit 

 

Notes:

--With the automatic window openers, you can be sure of an even temperature in your greenhouse day and night.they allow thermostatic ventilation control through the roof windows of your greenhouse.

--It needs to put the cylinder in the refrigerator for a period of time (half an hour is enough) before the cylinder screw into cylinder housing.

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 be stoped 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.