Description
Automatic window opener for glass greenhouses. Can be added for roof and side windows.
The automatic window opener works similarly to a thermostat. No electrical connection or batteries are required. The liquid filled in the automatic opener expands as the temperature rises (starting from ~17 degrees), forcing the window to open. In turn, as the temperature drops, the liquid contracts and the window closes. The temperature at which the window starts to open and close can be adjusted.
