... 2.1/3 CCD Sony camera 3.Night vision with IR LED 4.Modularized of door panels 5.Burglar alarms ... .Cast aluminium panel, flush mount.6.Night viewing with IR LED.7.Easy to replace name tags.8.Card reader ... parameters: Display: 4 CRT/TFT-LCD, or 3.5'',5'',5.8'' & 7 TFT-LCD Display: 420TV lines(B.W), ... : -10~+55°cPics: Direct-call door phone system with built-in LED,Sony CCD camera and changable name tags