The alternative to the key: Just hold the electronic key briefly in front of the reading field to open the door. In case of loss, the relevant key is simply disabled.
The Vario principle is as ingenious as it is simple: It is based on functional modules and a design grid. Within the grid, the modules can be arranged in any combination. The result is a neatly arranged, aesthetically pleasing communication system every time. Everything is in perfect alignment and the proportions are right - even when large info signs or letterboxes are integrated.