Greenhouse Window Opener Vent, Solar Heat Sensitive Automatic Autovent for Greenhouse Roof, Non Electric Thermal Actuator with Adjustable 20-25°C Range, Aluminum Alloy Kit for

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 Kit Material: 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°-77F Size: 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 window Do not dismantle the cylinder The opener CANNOT stop 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.

• Automatic Temperature Control: This solar heat sensitive greenhouse window opener vent uses thermal expansion technology to automatically open and close your greenhouse roof vent as temperatures rise or fall between 68°F and 77°F (20–25°C), maintaining optimal growing conditions without electricity or batteries.
• Non-Electric & Eco-Friendly: The automatic greenhouse window opener operates entirely on solar energy—no wiring, power sources, or maintenance needed. Simply install it on your greenhouse frame, and it responds intelligently to sunlight and ambient heat throughout the day.
• Universal Greenhouse Compatibility: Designed for most standard greenhouses, this autovent works with windows that open up to 18 inches (45 cm) and support up to 15 lbs (7 kg). It can be easily clamped or screwed onto aluminum or wooden greenhouse frames for secure, reliable operation.
• Durable Aluminum Alloy Construction: Built with - aluminum alloy, this greenhouse vent opener withstands outdoor weather year-round while ensuring smooth, consistent performance. Its robust cylinder mechanism delivers long-lasting automatic ventilation without manual intervention.
• Complete Ready-to-Install Kit: Each package includes 1 automatic window opener kit measuring approximately 12.6 x 3.74 x 1.97 inches. Fully adjustable and ready to mount, it’s ideal for hobbyists and professional growers seeking hands-free climate control in their greenhouse.