1,4 ch security dvr 2, CMS software /3G/ mobile monitoring 3,Watermark, digital ... Dual-streamSupport SMTP,UPNP, DDNS, PPPOE, etc, protocolsSupport sending alarm information and picture by E-mail linkage when external trigger ... NTSC:7fps)Pre recorderMax 30 SecondsImage Quality6 levelsMotionTrigger EventsRecorder,PTZ,Alarm,E-mailMotion DetectionConfigurable detection areas 352(22*16) and Sensitivity ...