18WorkingHumidity10℅－90℅Airpressure86kpa－106kpaDimension440mm × 460mm × 89mmWeight 5.5kg～6.5kg（Exclude HDD）InstallationDesk installation1.3.9 NVR72/72-8P SeriesModel NVR72 Series NVR72-8P SeriesSystem SystemResources8/16/32/64-channel series product support 8/16/32/64-channel HDconnection respectively. The main stream bandwidth supports48/96/192/192Mbps.OperationSystemEmbedded Linux real-time operation systemOperationInterfaceWEB/Local GUIDecode VideoCompressionH.264/MJPEGDecodeCapacityMax supports 32-channel D1, or 16-channel 720P, or 8-channel 1080Pdecode.Video VideoInput8/16/32/64-ch network compression video inputVideoOutput1-channel VGA analog video output.HDMI 1-ch HDMI output. Version number is 1.4WindowSplit1/4/8/9/16/25/36-windowAudio AudioInput1-ch bidirectional talk inputAudioOutput1-ch bidirectional talk outputAudioCompressionG.711aAlarm AlarmInput8-ch alarm outputAlarmOutput3-ch alarm outputRelay output. Relay （DC 30V/1A，AC 125V/0.5A（Activation output））Including one controllable DC +12V output.
