Intercom for access, assistance, shelter or intercommunication, control desks for cameras, entry and exit controls... Applications related to securing the public environment have very specific needs in terms of human interface -machine. Actors require robust, intuitive, aesthetic and often personalized solutions to guarantee an optimal user experience: visibility in broad daylight, resistance to changing weather conditions, vandalism, ease of maintenance... Kynoppe offers a wide range of control interfaces to meet these strategic issues.