Automatic Greenhouse Window Opener, Automatic Roof Vent Opener Solar Heat Sensitive Automatic Greenhouses Roof for Greenhouse Planting Agriculture Gardening Tools, Lifts 15 Lbs(7kg)

Description:
Perfect for your greenhouse window opens and closes your greenhouse window as the temperature changes automatically, maintains the best growing temperatureand prevents your greenhouse from overheating
Non Electric, uses solar energy, open or close the greenhouse vents as temperature rises or drops
Including fittings & installation manual
Can be clamped onto or screwed onto your greenhouse frame

Important notice:
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 cylinderThe opener CANNOT stop by manual

Package:
1 x Automatic window opener

Item Specifications:
Maximum window opening 45cm
Maximum opening about 30°, depending on adjustment and load
Maximum opening weight 7kg/15lb
Adjustable open temperature range 15°- 25°/60°-77F

Note: Due to the upgrade of this item, the 11th part showed in manual is not included. Please take the real one as standard.

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; Please ensure your greenhouse window can be opened freely by at least 45cm (18″).Do not apply excessive loads by locking or covering window
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.
Important notice:Do not use this opener anywhere the temperature will exceed 50?? (122F)