Wiwir Greenhouse Automatic Window Opener Solar Heat Sensitive Auto Vent Opener Automatic Roof Vent Opener Agricultural Greenhouse Window Lifter Autovent Kit Lifts 15 Lbs(Single Spring)

Greenhouse Automatic Window Opener Solar Heat Sensitive Greenhouse Window Roof Vent Opener Single Spring Window Opener Garden Auto Vent Opener Tools Kit for Greenhouse Accessories 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 Degree C (68 – 77 Degree F) Maximum window opening: 45cm 18 inch Maximum opening weight: 7kg15lb Size: Approx. 38×9.5x5cm 15.0×3.7×2.0in 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 Degree (122F) Please ensure your greenhouse window can be opened freely by at least 45cm (18 inch ) 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.

✿【Premium Quality】– This Automatic Window Opener is made of quality built anodised aluminium.The paint spraying aluminum frame looks more lustrous, durable and rust-proof.
✿【Greenhouse Automatic Vent Opener】– As the temperature changes,This auto thermo for window will automatically open and close your garden greenhouse vent to maintains the best growing temperature and prevents your greenhouse from overheating.
✿【Environmental friendly】– Non electric, uses solar energy,open or close the greenhouse window as temperature rises or drops. This solar heat sensitive auto vent opener can lift up to 15 lbs. The cylinder closes well before deep freezing and opens again without problem.
✿【Working Conditions】–Start opening at 15°C-25°C (59-77°F);Fully open temperature at 30° (86°F) or above;Full opening distance :45 cm (18 inches).The greenhouse automatic roof vent opener kit will shut down completely when the temperature drops to bellow 59°F (15°C).Up to Load Capacity:7-15kgs(15-33lbs).
✿【Warm Tips】– Do not use this automatic roof vent Opener lifts anywhere the temperature will exceed 45° (122F).