User Manual
DS-73xxHUI-K4, DS-73xxHQI-K4, DS-90xxHUI-K8 DVR User Manual 
UM DS-73xxHUI-K4 DS-73xxHQI-K4 DS-90xxHUI-K8 092017NA  6 
•  Defog level, night to day sensitivity, day to night sensitivity, IR light brightness, day/night mode, and 
WDR switch configurable for the connected analog cameras supporting these parameters 
•  4 MP/5 MP signal switch for the supported analog cameras 
•  Watermark technology 
Local Monitoring 
•  HDMI output at up to 4K (3840 × 2160) resolution 
•  There are two HDMI interfaces of which the HDMI1 and VGA interfaces share simultaneous output. 
For HDMI1/VGA output, up to 1920 × 1080 resolution is supported. For HDMI2 output, up to 4K 
(3840 × 2160) resolution is supported   
•  1/4/6/8/9/16/25/36 screen live view is supported, and the display sequence of screens is adjustable 
If the sum of the analog and IP channels exceeds 25, up to 32-window division mode is 
supported for the VGA/HDMI1 output 
•  Live view screen can be switched in group and manual switch and automatic cycle live view are also 
provided, the interval of automatic cycle can be adjusted   
•  CVBS output only serves as the aux output or live view output 
•  Quick setting menu is provided for live view 
•  The selected live view channel can be shielded 
•  VCA information overlay in live view for the supported analog cameras and in smart playback for 
the supported analog and IP cameras 
•  Motion detection, video-tampering detection, video e
xception alarm, video loss alarm, and VCA 
alarm functions 
•  1-ch analog camera supports people counting and heat map functions 
•  HUI Series supports line crossing detection and intrusion detection of all channels, and 2-ch sudden 
scene change detection.   
•  The enhanced VCA mode conflicts with the 2K/4K output and 4 MP/5 MP signal input (HUI Series) 
•  Privacy mask 
•  Several PTZ protocols (including Omnicast VMS of Genetec) supported; PTZ preset, patrol and 
pattern 
•  Zooming in/out by clicking the mouse and PTZ tracing by dragging mouse.   
HDD Management 
•  Each disk can have a maximum of 8 TB storage capacity 
•  8 network disks (8 NAS disks, 8 IP SAN disks, or n N
AS disks + m IP SAN disks (n+m ≤ 8)) can be 
connected 
•  Remaining recording time of the HDD can be viewed 
•  Supports cloud storage 










