Lock control, Voice monitor, Intercom transfer / call / broadcast, Door monitoring function, Call transfer to the other monitor...

Color Contrast, Brightness adjustment, DO NOT DISTURB setting, Visitor-call transfer,Indoor monitor listening function, Image format convert 16:9 to 4:3; Broadcast function;

Lock control, monitor listening, support call transfer, broadcast function...

1/4’’ color CCD camera, Support lock control, Support 4 wires connection, Night vision, Water proof

1/4’’ color CCD camera, Support lock control, Support 4 wires connection, Night vision, Water proof

Camera: Color CMOS camera, Power voltage: DC10-15V, Operating temperature：- 30 ℃~+ 60℃, Connection： 4 wires,  Lock control：Yes