Reolink C2 User Manual page 34

Note: Don't use PTZ and motion detection simultaneously. When the camera
pans/tilts/zooms, the images will change. It will be taken mistakenly by camera as
motion. Thus false alarms will be triggered. So it is not suggested you use PTZ and
motion detection simultaneously.
4.4.1 Alarm >Sensitivity
It means how sensitive the camera will be to the change of the images. Drag the slider to
change the sensitivity values. The lower the number is, the more sensitive to motion the
camera will be, and the more frequent motion will be triggered.
Tips:
1. The day is divided into four periods by default, you may change each period's start and
end time to best match the changing lighting conditions in your location.
2. During the day time, the light is good enough for the camera to capture the whole
scenario, the sensitivity is suggested to set between 5–10 which will give good results.
3. During the night time, the motion detection is more sensitive, the value is suggested
set to 25-30 or even higher which will significantly avoid some fault
Note:
The motion detection will be affected by the light and weather, it is suggested that you
should test your motion detection sensitivity both during the day and at night to ensure your
sensitivity setting is suitable for either lighting condition.

False Triggers
Setting the motion detection at high sensitivity levels (4 or lower) increases the
frequency of false alarms. On the other hand, low sensitivity levels (20 or higher)
increase the risk that a significant motion event (such as an intruder) will not trigger
the motion detection to record.
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triggers.