Automatic Greenhouse Vent Opener - Solar Powered Window Opener for Roof Ventilation - Heat-Sensitive Auto Vent Kit - Greenhouse Accessories - Single Spring, Up to 33lbs

Descriptiongreenhouse automatic vent opener uses a single-spring solar powered window opener design, making it ideal for greenhouses, cold frames, and gardening sheds. This auto greenhouse opener adjusts vent position by sensing temperature, ensuring optimal ventilation without electricity, which suits rural or remote locations.Features-Color:Black-Material:iron-Size:31.50X5.00X3.00cm/12.40X1.97X1.18in-Size:29.30X1.60X1.60cm/11.54X0.63X0.63in-Minimum Opening Temperature: 15-25°C (59-77°F)-Maximum Opening Temperature: 30°C (86°F)-Maximum Opening Stroke: 45cm / 18 inches-Maximum Load Capacity: 7-15 kg / 15-33 lbs-No Power Required, Heat Sensitive, Suitable for All Weather Conditions-No Power Needed: This automatic window opener uses a single spring piston and temperature ventilation sensitive technology, ensuring efficient greenhouse ventilation without external electricity, perfect for rural or off-grid locations-Temperature Responsive: Featuring a builtin Greenhouse Ventilation System, the solar powered window opener cylinder automatically adjusts for optimal airflow, preventing overheating and protecting your crops-Easy Installation: Designed as a greenhouse window opener piston, this Automatic Window Opener requires no wiring—simply mount to your window frame and wall for quick setup in both traditional and modern greenhouses-Wind Protection: The auto roof vent opener automatic's precisely calibrated spring ensures smooth, controlled opening, reducing window swing risks during windy conditions and increasing greenhouse structure safety-Versatile Compatibility: Compatible with side-opening and top-hung windows, this Auto Greenhouse Opener fits diverse greenhouse window opener automatic styles, supporting farm and cooperative production management

• No Power Needed: This automatic window opener uses a single spring piston and temperature ventilation sensitive technology, ensuring efficient greenhouse ventilation without external electricity, perfect for rural or off-grid locations
• Temperature Responsive: Featuring a builtin Greenhouse Ventilation System, the solar powered window opener cylinder automatically adjusts for optimal airflow, preventing overheating and protecting your crops
• Easy Installation: Designed as a greenhouse window opener piston, this Automatic Window Opener requires no wiring—simply mount to your window frame and wall for quick setup in both traditional and modern greenhouses
• Wind Protection: The auto roof vent opener automatic's precisely calibrated spring ensures smooth, controlled opening, reducing window swing risks during windy conditions and increasing greenhouse structure safety
• Versatile Compatibility: Compatible with side-opening and top-hung windows, this Auto Greenhouse Opener fits diverse greenhouse window opener automatic styles, supporting farm and cooperative production management