Nimomo Automatic Window Opener Kit Durable Greenhouse Window Opener Vent Autovent Solar Heat Sensitive Automatic Greenhouses Roof

Prevent the greenhouse from overheating and maintain the normal growth needs of crops. Manufactured from high quality materials, perfect for your greenhouse windows - open and close your greenhouse windows. With automatic temperature changes, maintain optimal growing temperatures and prevent overheating in the greenhouse. Non-electric, use solar energy, open or close greenhouse vents as the temperature rises or falls, saving energy and environmental protection.