Automatic Greenhouse Window Opener with Double Spring and Temperature Control – Lifting Capacity Up to 15 kg

Double spring construction: The double spring mechanism provides stability and flexibility to withstand strong winds. Suitable for most greenhouse windows; the maximum weight of the ventilation windows is less than 15 kg. Safe to use. Automatic window opener: The greenhouse window opener can automatically open and close greenhouse windows to control the greenhouse temperature as the temperature changes. The maximum opening distance is 45 cm. Strong weather resistance: The aluminum window opener is brighter, more durable, and rust-resistant. The extended aluminum cylinder is coated with spray paint, making it much more durable. It fits most greenhouse windows. Automatic temperature control: The automatic opening temperature range is adjustable. When the temperature is below 15°C, the window closes automatically. When the temperature reaches 25°C, the window opens automatically. Easy to install: The window opener comes with screws for easy installation. You can use a screwdriver to screw it directly into panels, wooden frames, or metal frames. The automatic window opener is suitable for modern garden greenhouses.