Automatic greenhouse window opener

Automatic window opener for all types of greenhouses at a really great price!

Automatic opener for a sunroof - a piston with a lever that replaces manual opening. The piston works on the basis of the thermal expansion of the wax and as the temperature in the greenhouse increases, it moves with the lever and opens the window.

The opening can be adjusted in the temperature range of 16o C to 25o C.

Opening height 45cm, opening force approx. 7kg.