3.5 "intercom system

Features:1. One door station of this intercom systemcan support up to 4 indoor phones.2. Handfree color videointercom systemwith 5.6 or 7 CRT screen and CCD or CMOS camera. 3.LED in the door station provides a clear picture even in nighttime.4. 10 seconds ring tones, 30 seconds active surveillance and 120 seconds intercom are available.5. Double ding-dong ring,remote door unlocking and waterproof are available.6.Connection:4 or 5 wires7. Panel: Plastics8. Installation:a) For door station:surface or flush mountingb) For indoor phone:surface mounting9) Power supply: DC15-18V10) Consumption: Standby 0.5 W; Working status 15W11) Dimensions:a) For door station: 125 x 80x 35mm b) For indoor phone:150 x 255x 32mm