Solar-powered automatic greenhouse window opener with temperature control, up to 7 kg

Automatic window opener: your plants are optimally ventilated thanks to temperature-controlled opening and closing. No electricity or batteries required. The window opener operates within a temperature range of approximately 16°C to 35°C. When the temperature changes, the piston of the automatic window opener activates, opening or closing the window. You can continuously adjust the opening angle by rotating the cylinder to achieve the perfect ventilation for your plants. Ultra-lightweight thanks to its practical design, it's easy to carry and perfect for all standard garden shed and greenhouse windows. Product benefits: The window opener is a fully automatic, temperature-controlled device that requires no electricity or batteries. Since the cylinder reacts directly to ambient temperature, the window opens and closes automatically as the temperature changes. The opening angle is continuously adjustable by rotating the cylinder. This window opener comes with a spring and mounting hardware. It features a temperature-controlled cylinder and is suitable for all common window sizes, such as standard garden windows, wooden or aluminum greenhouse windows, and for cooling frames, roofs, side windows, and automatic refrigerated shelves. The normally closed contact reacts directly to temperature changes, causing the window to open or close. Its ultra-lightweight construction makes it easy to carry. It has a high lifting capacity of up to 7 kg. The galvanized steel window opener is strong and durable. Technical specifications: Material: Galvanized steel Cylinder LxØ: 28cmx1.5cm Temperature range: 16-35°C Lifting force: up to approximately 7 kg Number of springs: 1 Opening angle: 30° Lifting height: approximately 45 cm Size LxWxH: 320x450x50mm Color: natural galvanized color