The Evolution Duo Cam high security espagnolette system features twin mushroom cams at each locking point instead of the traditional one.

With a simple turn of the handle the unique gearbox activates up to four pairs of high strength mushroom cams, simultaneously driving each cam into a double sided striker from opposite directions.

Evolution for casement security

This double action locking means that any attempt to force one cam out of it's closed position merely forces the opposing cams deeper into their strikers, strengthening rather than weakening the system's security.

The duo cam feature, coupled with a new design of mushroom cam and additional screw fixings allows the Evolution Duo Cam to match (and at times exceed) the security performance of shootbolt systems.