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6.3 Video shield
You can set when the lens is shielded, trigger alarm.
1. From setup menu, select <video shield>tab.
2. Open <video shield>.
3. Setting video shield sensitivity. Higher sensitivity, faster to detect video shield.
4. It will run operation when appointed alarm triggering. About <alarm linkage>and<pre-
recording>, please refer “gray value”.
5.
When done, click [yes].
Video shield will detect a little while after shield happened (max.5s).