... CIF,QCIFSupport 2-way audio.Support remote updating of device.RS485, built in many kinds of high speed ... impetence:75Ω),support 4 vedio outputFrame ratePAL:1-25 fps NTSC:1-30fpsStream typeVideo stream/composite streamVedio resolutionsPAL:704 ... RTSP,PPPoE,FTP,SMTPAlarm 1 output,1 inputEmail alarmsupportCommunication port1 RJ45 10/100M ,1 RS485Power supplyDC 12V/1.5APower5W MAXWorking temperatureIndoor - ...