... , ONVIF HDMI, 8pcs HDD 4.2U 16CH NVR High Quality Dahua Onvif Nvr 4/8/16 Channel 2U Professional ... zones for privacy masking for each cameraOSDCamera title, time, video loss, camera lock, motion detection, recordingRecordingCompressionH.264 / MPEG4Recording ... >Alarm >MD >RegularRecording Interval1~120 min (default: 60 min)Video Detection & AlarmTrigger EventsRecording, PTZ movement, Tour, Alarm, Email, ...