Non-electric, uses solar energy, opens or closes the greenhouse vents as the temperature rises or falls. Because the temperature changes automatically, it maintains the best growing temperature and prevents your greenhouse from overheating.
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Solar heat sensing greenhouse automatic window spring opener. Help to maintain the best growing temperature and prevents your greenhouse from overheating. 1 Piece Automatic Greenhouse Window Opener.
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Ideal for your greenhouse window-opens and closes your greenhouse window as the temperature changes automatically, maintains the best growing temperature and prevents your greenhouse from overheating.
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Mortar and Pestle Grind Food Spice Herb Grinder Bowl Paste Pestal Heavy Duty. 1 x Automatic Window Opener. 2PCS Ice Cube Bar Silicone 4 Ball Maker DIY Mold Sphere Large Tray Whiskey Mould. Beer Keg Growler Spear Stainless Steel Double Ball Lock Mini Keg Dispenser Mini.
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Has an opening force of 7kg. Maximum opening at 30°C. Easy to install and does not need electricity as it uses the heat from the sun. Full instructions provided. Automatically starts to open with the heat from the sun between 17°C - 25°C depending on the setup.
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When the temperature in the greenhouse rises, the cylinder will expand and gently open the window to optimize the indoor climate. Installing a greenhouse vent opener is very easy. It is suitable for most greenhouses.
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Fully automatic greenhouse ventilation. 1 x Automatic Window Opener kit. With spring. No batteries or electricity required.
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[Automatic Vent Opener]Greenhouse windows opener can open and shut your greenhouse window automatically to maintain the best-growing temperature and prevent your greenhouse from overheating. The vent opener starts opening between 15-25℃ (60-77℉), depending on how you have adjusted the cylinder.
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