CHANGE MOORE Auto Vent Opener 2Pack Automatic Greenhouse Window Opener, Roof Vent Opener Auto Vent Kit, Sensitive Gardening Tools Automatic Greenhouses Supplies (Single Spring Up to 33lbs)

No Batteries Required : Our automatic window opener is completely self-sufficient and doesn't rely on batteries or electricity for operation. No additional power source is needed, saving you money and reducing environmental impact

• Wide Temperature Range for Versatile Operation: Operating between 15°C to 25°C (60°F - 77°F), the opener is perfect for various climates. Greenhouse automatic vent opener fully opens at temperatures above 35°C (95°F), with a maximum vent distance of 45 cm (18"), ensuring excellent air circulation and ventilation in your greenhouse.
• No Batteries: Our automatic window opener is entirely self-sufficient, requiring no batteries or electricity. This energy-efficient design saves you money while reducing your environmental footprint—perfect for sustainable gardening.
• Temperature-Controlled Ventilation for Your Greenhouse: Our automatic window opener efficiently regulates your greenhouse climate by responding to temperature changes. As the temperature rises, the gas-filled cylinder expands, automatically opening the window. When the temperature drops, the spring mechanism smoothly closes the window, ensuring optimal airflow and temperature control.
• Easy Installation & Broad Compatibility: Installing the auto vent opener is quick and hassle-free with the included clamps and screws. Greenhouse window opener is compatible with most greenhouse windows and seamlessly integrates with roof vents, making it a versatile solution for a wide range of greenhouse setups.
• Long-Lasting Performance: Built with premium anodized galvanized steel, this greenhouse vent opener is designed for durability and long-term use. Greenhouse vent opener withstands the demanding conditions of greenhouse, making it a reliable gardening companion for years to come.