Greenhouse Automatic Roof Vent Opener Replacement Cylinder Sensor Maintains Best Temperature Agriculture Garden Tool

Greenhouse Automatic Roof Vent Opener Replacement Cylinder Temperature Sensor Maintains Best Temperature Agriculture Garden Tool Features: Made of quality material, durable and convenient to use. As the temperature changes automatically, maintains the best growing temperature and prevents your greenhouse from overheating. Non-electric, uses solar energy, open or close the greenhouse vents as temperature rises or drops. Perfect for your greenhouse window. This products need to be refrigerated before use it. Specifications: Item Type: Greenhouse Winder Opener Cylinder Temperature range 15°- 25°/60°-77F Weight: Approx. 107g Package: 1 x Greenhouse Winder Opener Cylinder Notes: 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. We support the following payment methods. All payments made on AliExpress are processed by Alipay. We will ship out the package within 2- 5 business days after the payment cleared. Please make sure that your address is correctbefore purchase. Please contact us before open dispute or leave a negative feedback if you encounter the following situation: 1.Didn't receive the product in time; 2.Receive a damaged product; 3.Have any questions about the product. We will try our best to solve your problem and make you 100% satisfied.