Q-See QSD2216 - Manual (Page 25)

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ALARM ENABLE: alarm trigger switch, can be set to off, N.C(normal closed) or N.O(normal open).
If users set it to off, the DVR will ignore the alarm input.
MOTION ENABLE: Motion alarm switch, can be set to ON or OFF. If set to off, the DVR will ignore
the motion alarm.
MOTION LEVEL: motion sensitivity level, if the figure in the picture is small, please set to high or
very high, default is normal.
BUZZER TIME: buzzer sound time when there is a sensor or motion alarm.
SENSE RECTIME: when a motion or sensor alarm is triggered, the recording time of DVR, default
is 10 seconds.
Notice: Users should press the schedule button after setting up the parameters to activate
the settings.
5.6.1 Motion Detection settings
1) When surveying nearby objects (2-10 meters)
When in daytime, please set motion detection sensitivity to Normal level; when in night,
please set to low.
2) When surveying objects in 50-100 meters area
The objects 50-100 meters away will be quite small on the screen. When in daytime, please
set motion detection sensitivity to high level.