Uniden GDVR 42 Series Owner's Manual page 41

FIelD
Enable
Holding Time
Trigger
area
DescrIptIon
enable this function on a channel to detect motion.
Set an alarm delay time for the channel. Options are 5
sec., 10 sec., 20 sec., 30 sec., 60 sec., and 120 sec., or
"Always."
Select this field to set alarm trigger configuration, trigger
recording, PTZ camera linking (PTZ camera not included),
etc. Selecting this field displays the Trigger screen for a
specific channel.
Commonly called "motion masking," a grid overlays a
selected camera's live video with task bar at the bottom.
mask off areas the motion detection ignores. you can also
determine motion sensitivity (block off ceiling fans, or the
floor area if you have pets.)
In this interface, the user can drag the scrollbar to adjust
the sensitivity value (1-8). The default value is 6; the
smaller the value is, the higher the sensitivity. Since the
sensitivity is affected by the color, time (day or night), etc,
adjust the value according to the actual situation.
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