Video Detection; Motion Detection - Dahua NVR21-4KS3 Series User Manual

Step 2 Select the alarm mode of the alarm output channel.
Click Apply.
Step 3
● Click OK next to Alarm Reset to clear all alarm output statuses.
● View the alarm output status on the Status column.

5.10.5 Video Detection

The system can analyze the video and check whether there is considerable change or not. Once
video has changed considerably (for example, there is any moving object, video is distorted), the
system performs alarm linkage actions.

5.10.5.1 Motion Detection

When the moving object appears and moves fast enough to reach the preset sensitivity value, the
system performs alarm linkage actions.
Procedure
Step 1 Select Main Menu > ALARM > Video Detection > Motion Detection.
Step 2 Select a channel and then click
Step 3 Configure the detection region.
1) Click Setting next to Region.
2) Point to the middle top of the page.
Figure 5-209 Alarm-out port
to enable the function.
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User's Manual