3,5-Zoll-Video-Türsprech

With the function of video talk-back, unlocking by remote control, monitoring Door-stationIn case of emergency, calling management center at any timeWith 8 to 4 defense area alarming functionRemote button withdraw a garrison and arming3.5/4-inch color Liquid Crystal Display, Easy viewingHands-free calls, safe, easy communication.Video Room-station has unique shape, elegant and graceful.Receive information,with information search functionFurthermore, view storage and information releasing are optional.Work voltageDC17V 20VPower consumedstatic state :< 20mA work :< 600mAWork temperature range0°c +45°c Working humidity45%-95%Horizontal resolutionCCIR 350 lineScan frequencyCCIR H: 15,625±400HZ V: 47±3HZDisplaycolor TFT: 3.5/4inchMaterial of frameABS