Video door phone system

Function & Characteristic.
7 inch TFT Video door phone system,metal Pin-hole camera.
Specification
metal Pin-hole camera,good design,CMOS or CCD sensor.
handfree indoor monitor, 7 inch TFT,clear image.
intercommunication,monitoring the outdoor,unlock..
Intercommunication is available between indoor and outdoor unit..
Brightness, chroma and ring adjustable.
3-chord melody rings for option.
two cameras can connected with four monitors.(different choice)
four wires,DIY installation
Including in one kit:One indoor monitor, one outdoor camera, power adapter, user manual,cables.
Packing detail: Color box,5sets in one carton.
surface mounting for monitor,Flush mounting for camera
monitor dimension:230(L)x180(W)x18(H)mm
camera dimension:69(L)x157(W)x23(H)mm
Wiring requirements:30M: RVV4 X 0.5 mm,50M: RVV4 X 0.75 mm,100M: RVV4 X 1.0 mm
Video door phone system