Features:
Surface-mounted, color TFT Screen with sensor buttons
Color/contrast/brightness/volume adjustable
Each indoor monitor can intercom, broadcast, and calling among each other
Supports 2 Outdoor Units to work with 4 indoor monitors
Each indoor monitor can monitor any one of the other 3 indoor monitors.
Support visitor-calls transferable to telephone
Support door released by telephone remotely or any indoor monitors
Support image capture function 1024 images memory
Support insert SD Card for saving captures images to computer for history record
Support 4-Channel CCTV cameras fitted for security surveillance
Support watch TV & Listen music function
Applicable for Villa
4 wires twisted pair cables, simple star cable installation.

Technical parameters:
Display screen: color TFT Screen with sensor buttons
Resolution: > 400 TV lines
Scan frequency: 15,625Hz(H),50Hz(V)
Power voltage: AC 110~220V 1200mA
Video input: 75 1Vp-p
Power consumption: 1.5w 12 w
Wiring mode: 4 wires,polar
Ambient temperature: -10oC~40oC.