LCD video doorphone 1.with IR CCD camera 2.Easy installation&operation 3.CE,FCC,IQNet,CCC,FC ... CCD Display: LED or LCD Min. illumination: 0.01LUX Video Output: 1Vp-p/75 Audio SNR: ≥50dB Audio distortion: ≤5% ... LCD Display: 420TV lines(B.W), or 300,000 pixels(color) Working voltage: DC12V±10%(audio); DC18V±10%(vedio); ... (active) Environment Temperature: -10~55°c Apartment Building Video Doorphone System