New Style Solar Heat Sensitive Automatic Greenhouse Vent Opener Auto Vent Kit Double Spring Window Opener Ventilation Tools
Description:
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Prevent greenhouse overheating.
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Ideal for your greenhouse window--opens and closes your greenhouse window.
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As the temperature changes automatically, maintains the best growing temperature and prevents your greenhouse from overheating.
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Non electric, uses solar energy, open or close the greenhouse vents as temperature rises or drops.
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Can be clamped onto or screwed onto your greenhouse frame.
Important notice:
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Do not use this opener anywhere the temperature will exceed 50° (122F)
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Please ensure your greenhouse window can be opened freely by at least 45cm (18")
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Do not apply excessive loads by locking or covering window
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Do not dismantle the cylinder The opener CANNOT stop by manual
Specifications:
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Maximum window opening: 45cm
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Maximum opening about: 30°
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depending on adjustment and load Maximum opening weight: 7kg/15lb
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Adjustable open temperature range: 15°- 25°/60°-77F
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Size: 38 x 9.5 x 9.5 cm / 14.96 x 3.74 x 3.74 inch (appr.)
Package included:
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1 x Single Spring Window Opener
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or
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1 x Double Spring Window Opener
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or
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1 x Cylinder Only
Note: Due to the upgrade of this item, the 11th part showed in manual is not included. Please take the real one as standard.