The system consists of outdoor unit, indoor unit(video or audio for option) and power supply for a department with 16 users.

1.Monitoring the outdoors if the video indoor unit is chosen.
2.Different kinds of indoor units with electric-controlled unlocking function for option.
3.Intercommunication is available between the outdoor and indoor unit.
4.Waterproof, aluminum alloy front panel ( the whole outdoor unit ).
5.Camera can be adjusted in four directions :up,down,left and right to ensure the clear picture.
6.Night vision.
7.Spare UPS power supply to make sure the system can work normally when short time power failure occurs.
8.Protecting device for power supply.