The Quadra kits by Comelit feature a surface mounted die-cast aluminium entrance panel, along with a monitor.
All the Quadra kits are Simplebus two wire, meaning they only require power, audio and video on two wires. Each kit has the possibility of expanding up to 4 monitors per button (one main, three secondary), simply by adding more monitors; Icona, Mini, or Smart S. No additional power supplies are required even when adding up to the maximum of 16.
Each kit comes with extra nameplates to change to two or four users. Configuration for more than one user is done via the dip-switches behind the entry panel. If you have more than one entry panel and need to control two different releases then add the model 1405 entry switch.
Adding up to three analogue CCTV cameras is possible by adding model 1409 camera module and a model 1200 power supply. Other extension options include adding the model 1256 actuator relay module for controlling additional lock releases or other auxiliary options like lights and gates which will also require a model 1200 power supply.