Video door phones

Outdoor Camera for4 units apartment(intercom system,video door phones) Specifications: 1) Mix installation of audio door phone and video door phone 2) Room-room video/audio communication between every sub-phone 3) LED in the door station provides a clear picture even at night 4) Dingdong or chord melody rings are optional 5) Intercom, surveillance, remote door unlocking 6) Color or B/W is optional, CCD or CMOS is optional 7) Surface-mounted, water-proof and heavy duty anti-vandal door station 8) Western-style, ultra-thin design and built-in blue light