Automatic Greenhouse Vent Opener - Dual Spring Temperature Sensitive Window Controller for Optimal Plant Growth and Overheat Prevention (Up to 15lb Load)
【Automatic Temperature Control】 Automatically opens and closes greenhouse window based on temperature changes, maintaining optimal growing conditions and preventing overheating. Ideal for gardeners seeking a hands-free ventilation solution.
【Dual Spring Vent Opener】 Features a double spring mechanism for reliable and smooth operation, ensuring consistent ventilation without manual intervention.
【Adjustable Temperature Range】 Easily adjust the opening temperature between 15-25°C (60-77°F) by rotating the cylinder, with full opening achieved at approximately 30°C / 86°F.
【Sturdy Iron Construction】 Made from durable iron with a protective paint coating to resist rust and ensure long-lasting performance in various weather conditions.
【Easy Installation & Manual Override】 Simple to install on most aluminum frame greenhouses and includes a manual closing option for added control and convenience.
