... cctv DVR 8 channel cctv dvr Moblie view: support RS 485 Control,RJ45,remote control,VGA Alarm 8CH cctv DVR8 channel cctv dvr 8CH video ... composite video input 1.0Vp-p,impedance75Ω,BNC Video out1ch composite video output,BNC(8 CH)Video ... ,impedance600Ω,RCABasic electricity outputLinearity electricityRecord styleAudio video recorded simultaneouslyAudio compressionADPCMPicture proceeding and storePicture ...