Description

Working principle of greenhouse vent automatic opener: If the temperature of the greenhouse rises, the gas in the gas field will become hot, and the spring force will push it out due to the increase in pressure. If the temperature Lower again (the cylinder cools down), the spring pushes the air rod back into the cylinder (the window closes). (window opens).

Features

-Color:Black
-Material:Stainless steel
-Size:34.00X1.50X1.50cm/13.36X0.59X0.59in
-Automatically to maintain the optimal growth temperature and prevent the greenhouse from overheating.

-Easy to install, convenient and practical.

-Light weight and portable, easy to carry and storage.
car tools

1 x Automatic Window Opener

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