**This item has been discontinued by the Manufacture, ESP. The closest alternative is the Aperta Single Way Colour Door Entry Kit - Available Here** The EV5C from ESP presents crystal clear colour imagery from your front door to the 4 monitor inside your building, allowing you to see any visitors or potential threats from an out-of-sight location. Bright LEDs provide fantastic illumination, so you can always make out a face, even in darkness. The stylish low profile monitor unit provides a facility to activate a lock release, transfer calls to other handsets and select the video feed from the camera call point on demand. The system can be extended by adding up to 3 additional video handsets, 2 additional audio handsets, and one additional external call point camera. Cabling of Enterview 5 systems is simple, the included power supply feeds suitable voltage to both the monitor and camera. An Additional power supply ( EVBPS ) is only required when introducing a lock release. T