Greenhouse Window Automatic Opener - Effortless Ventilation Greenhouse Window Automatic Opener - Effortless Ventilation Ensure optimal ventilation for your greenhouse with our Automatic Hatch Opener. Designed to ventilate your greenhouse even when you're away, this opener is compatible with all greenhouse types, regardless of manufacturer or material. Utilizing the swelling method, it starts opening the hatch when temperatures reach between +15 to 25�C, providing a controlled airflow to maintain ideal growing conditions. Key Features: Automatic Ventilation: Opens the greenhouse window automatically to regulate temperature and humidity, ensuring optimal growing conditions for your plants.Universal Compatibility: Suitable for all greenhouse types, making it versatile and adaptable to various setups.Temperature-Activated: Begins opening the hatch when temperatures reach between +15 to 25�C, preventing overheating and promoting airflow.Wide Opening: Opens the hatch up to 45 cm, allowing for efficient air circulation throughout the greenhouse.High Lifting Capacity: Capable of lifting weights up to 7 kg, ensuring reliable operation for larger greenhouse windows. Product Specifications: Activation Temperature: +15 to 25�CMaximum Opening: 45 cmLifting Capacity: Up to 7 kg Upgrade your greenhouse ventilation system with our Automatic Hatch Opener. Enjoy peace of mind knowing that your plants are receiving optimal airflow and ventilation, even when you're not there to monitor.