HIKVISION HWN-2104H-4P User Manual page 114

Playing back by Tag
Select the Tag from the drop-down list in the Playback interface.
Select the stream to Main Stream or Sub Stream.
Choose channels, edit start time and end time, and then click Search to enter Search Result
interface.
You can enter keyword in the textbox
Click button to play back the selected tag file.
Network Video Recorder User Manual
Tag Management Interface
to search the tag on your command.
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