Compare the similarity between captured face pictures and those in list library. A stranger alarm will be triggered if the similarity value does not reach the configured value.

1. Go to Alarm Search > Stranger Alarm. By default, the server displays all current alarm information.
   Figure 1. Stranger Alarm Interface
2. Optional: Select the desired cameras or records. If no camera or record is selected, all the alarm information will be searched.
3. Set search conditions according to actual needs.
4. Click Search.
5. Click stranger alarm picture to view detailed information.
   Figure 2. View Detailed Information of Stranger Alarm
6. Optional: Click Alarm Confirmation to confirm the alarm.
7. Optional: Click Export Current Page or Export All to export alarm information.