Key benefits — why you need this greenhouse window opener Prevents heat stress and crop loss by automatically opening and closing windows to keep temperatures within a safe range. Runs on solar power with no mains electricity required, giving ecofriendly, silent operation and uninterrupted temperaturesensitive ventilation. Reduces time spent monitoring vents and lowers the risk of plants overheating or suffocating in stagnant air. How it works and what it does Automatic overheat prevention: opens and closes greenhouse windows based on temperature to maintain an ideal growing environment. Solar powered: uses sunlight for operation; silent and maintenancelight, suitable for sensitive growing areas. Adjustable temperature control: set the activation point anywhere from 15°C to 25°C to match the needs of different plants. Adjustable opening range: can open windows up to 45 cm or pivot up to 30° for controlled airflow. Key features and compatibility Installation options: can be clamped onto the frame or screwed in place for a secure fit. Window compatibility: designed for use with PVC and glass greenhouse windows. Performancefocused: precise temperature range (15°C–25°C) and defined opening limits (45 cm / 30°) let you tailor ventilation to plants' needs. Quiet operation ideal for temperaturesensitive ventilation where noise would be a problem. Practical benefits for everyday use Keeps seed trays, seedlings and young plants within a stable temperature band without manual intervention. Protects mature plants and flowering crops from heat spikes that can reduce yield or cause stress. Works well in offgrid or remote greenhouses where electrical power is unavailable or where silent operation is preferred. Use scenarios 1) Small hobby greenhouse with PVC windows: clamp the opener to a window frame, set the temperature to 20°C, and the unit will automatically vent on hot days—no wiring or daily checks required. 2) Seedling propagation bench in a glass greenhouse: screw the opener to glass frames and set to 18°C to maintain consistent conditions for sensitive seedlings during warm afternoons. 3) Remote or offgrid greenhouse: use solarpowered, silent ventilation to protect crops from overheating without installing electrical wiring. What makes it stand out Simple, reliable automatic control that prevents overheating without electricity or noise. Flexible installation and clear performance limits (15°C–25°C range; opens up to 45 cm or 30°) so you know exactly how it will behave in your greenhouse. Reduces labor and risk by delivering consistent, temperaturedriven ventilation tailored to plant needs.