Quadra series wall-mounted external video entry unit. Die-cast aluminum faceplate, wide-angle color camera and a single LED for nighttime lighting. Capacitive buttons with possibility to set from 1 to 4 call buttons using dip switches. Indicator LED for call sent, lock-release activated,
audio activated and system busy. Adjustment of speaker volume and audio balance. Power supply from bus line. External unit dimensions: 95x195x28 mm.