2pcs Automatic Roof Vent Opener Cylinder, Prevents Overheating with Temperature Sensor, Ideal for Greenhouse Window, Maintains Best Growing Temperature

1. Made of quality material, sturdy and convenient to use.2. As the temperature changes automatically, maintains the best growing temperature and prevents your greenhouse from overheating.3. Non-electric, uses solar energy, open or close the greenhouse vents as temperature rises or drops.4. Ideal for your greenhouse window.5. This products need to be refrigerated before use it.Specifications:Item Type: Greenhouse Winder Opener CylinderTemperature range 15°- 25°/60°-77FWeight: Approx. 107gPackage:2 x Greenhouse Winder Opener CylinderNotes:Do not use this opener cylinder anywhere the temperature will exceed 50° (122F).Do not dismantle the cylinder.This products need to be refrigerated before use it.Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.

• [Premium Material] Made of quality material, sturdy, and easy to use for long-lasting performance.
• [Important Note] This product should be refrigerated before use to ensure optimal functionality.
• [Solar Powered] Non-electric design harnesses solar energy to open or close greenhouse vents based on temperature changes.
• [Automatic Temperature Control] Automatically adjusts to maintain the ideal growing temperature, preventing overheating in your greenhouse.
• [Easy Installation] Ideal for your greenhouse window, ensuring easy setup and use.