Greenhouse Window Opener Cylinder Window Opener Sensor Solar Sensitive Automatic Greenhouse Window Opener Cylinder Replacement Temperature Sensor
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1. This is a replacement cylinder for automatic window opener, you can replace your broken cylinder with it if your autovent has stopped opening the window or doesn’t fully open. 2. High sensitive Window Opener Sensor , automatic respond to weather changes, so you don't need to stay near the greenhouse. 3. Solar power Replacement Cylinder, Non-electric, uses solar energy, open or close the greenhouse vents as temperature rises or drops. 4. Automatic Greenhouse Window Opener Cylinder is suitable for most greenhouse to open or close window automatically.