Monitoring button and easy installation;

4 wires in polarty system;

Contrast,brightness and chime volume controls;

Expandable video and audio station.

Screen: 4" B&W Flat CRT;

Video Input Signal: 1.0Vp-p 75ohm;

Communications Method: SYNCHRONIZATION;

Power Consumption: 18 walts;

Dimensions(W/H/D)mm: 190*225*55;

CRW-5S

Image Sensor: 1/3” B&W COMS Camera with Infrared LED

View Angel: Angular Fixed

           Surface type for plastic material

System: PAL OR NTSC

Dimension(W/H/D)mm: 110*140*30