Zerone Automatic Greenhouse Vent Opener - Solar Powered Temperature Sensor for Roof & Window Vents | Auto Opener for Efficient Greenhouse Climate Control

Description 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.

【Material】 :Made of quality material, durable, solid and convenient to use.Galvanized carbon steel sheet and aluminum Ideal for your greenhouse window--opens and closes your greenhouse window

【Automatic】 :As the temperature changes automatically, maintains the best growing temperature and prevents your greenhouse from overheating.

【Energy saving】:Non-electric, uses solar energy, open or close the greenhouse vents as temperature rises or drops.Solar powered greenhouse vent opener

【For greenhouse cultivation】 :Ideal for your greenhouse window.As the temperature changes automatically, maintains the best growing temperature and prevents your greenhouse from overheating

【Usage】 :This products need to be refrigerated before use it.Screw directly into polycarbonate panels, wood, or metal frames.