How does it work?A cable driven system operates either a chain or screw-jack type opener fitted to difficult to access, or high level windows. It is controlled from an operator mounted on the wall and connected via lengths of conduit and inner cable to the window openers. The conduit connecting the two can be manipulated around any obstacles - this allows for a flexible solution to any window opening. The opening and closing of the window is operated by a rotary handle placed in an easy to access location on the wall.