A solar vent window opener saves energy and your plants!

• Conserve electric fan energy! Soundless wax motor reacts to solar sensors, opening vent just enough, allowing for a quieter, relaxing environment
• Helps keep plants healthy, automatically. No more over heated greenhouses, even when the power supply is interrupted
• Works independent of power grid to continuously monitor greenhouse temperature
• Recommended for use in temperatures up to 120°F
• It is recommended the vent opener be removed during the winter months