Video Intercom System 1.4 wire,Color CCD Vandal Proof Camera 2.7"TFT Indoor Monitor 3.CE,ROHS,FCC,CCC, ... be connected to both door station and indoor phone.Anti-vandal, waterproof, cast aluminium, surface mount.Night viewing with IR LED ... indoor phones are optional.Pin-hole door camera is optional. Door stations technical parameters: Camera: 1/3 CCD(color), CMOS(b/w ...