WIWACAM MW3N Pro Quick Manual page 24

Tips: Alarm Recording needs Alarm Detection is enabled. Check 'Set
Alarm and Alarm Notification' in this Chapter for how to set alarm enabled.
Notes:
1. During Alarm Recording, if an alarm event is detected, camera starts
records video to microSD card.
2. If a new alarm event is detected before the Record Time expires, the
camera will automatically extend the recording. This ensures that all
relevant video evidence is captured, the new event will not be missed.
3. When the microSD is almost full, the camera will do auto loop: auto
overwrite oldest recordings by latest recordings.
4. Check 'Playback Recordings' in this chapter about how to view
recordings.
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