The 4212 module is part of the VR digital series of panels for the VX2200 system. The audio panel incorporates a blue back lit 128x64 graphical display, an alpha-numeric keypad, voice annunciation with call progress indication and integrated proximity access control. Manufactured from 12 gauge 304 grade stainless steel and requires a 4882 (surface) or 4852 (flush) back box. Designed for large installations it can be programmed directly from the panel or via PC software and can call up to 998 apartments.