Greenhouse Window Opener Vent Autovent Solar Heat Sensitive Automatic Greenhouses Roof

1、Prevent greenhouse overheating.2、Ideal for your greenhouse window--opens and closes your greenhouse window.3、As the temperature changes automatically, maintains the best growing temperature and prevents your greenhouse from overheating.4、Non electric, uses solar energy, open or close the greenhouse vents as temperature rises or drops.5、Can be clamped onto or screwed onto your greenhouse frame.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:Greenhouse Window Opener KitMaterial: Aluminum AlloyMaximum window opening: 45cm/ 18 inchFully adjustable between 20 - 25 ° C (68 - 77 ° F)Maximum opening weight: 7kg/15lbAdjustable open temperature range: 20°- 25°/68°-77FSize: 32 x 9.5 x 5 cm / 12.6 x 3.74 x 1.97 inch (appr.)Package:1 x Automatic Window Opener KitNotes: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 windowDo not dismantle the cylinderThe opener CANNOT stop by manualMonitorsare not calibrated same, item color displayed in photos may be showingslightly different from the real object. Please take the real one asstandard.