7 inch night vision handfree video door phone V7D-Z

Function and Features：
luxury cast iron camera,good design,CMOS or CCD sensor.6 LED lights,nightvision.
Handfree indoor monitor，7 inch CRT,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）×180（W）×18（H）mm 
Camera dimension:120（L）×１85（W）×50（H）mm 
Wiring requirements:value="30" unitname="m">30M: RVV4 X value=".5" unitname="mm">0.5 mm,value="50" unitname="m">50M: RVV4 X value=".75" unitname="mm">0.75 mm,value="100" unitname="m">100M: RVV4 X value="1" unitname="mm">1.0 mm
Data of Technology：·
Night vision illumination distance; more than 2 meters   
Gain control: Automatic   
Working temperature: value="10" unitname="C">-10 C- value="50" unitname="C">50 C
Illumination: 0.1 Lux   
Camera angle: value="92" unitname="C">92 C degrees wide-angle   
Adapter input voltage: AC100-240V  50Hz-60Hz   
Adapter output voltage  current: AC14.5V  1200mA   
Talk time delay: 90S    
Monitor time delay: 30S    
Dissipation: stand-by <0.5W     working <10W   
Relative humidity: 10 % - 90%(RH)