Use Alarm Buffer:Select Use alarm buffer when you forward the image and videoof before and after the alarm detection (pre-alarm, post-alarm). If you do not select it,only the image of the moment of the alarm detection is forwarded. Click Alarmbuffer to display the Alarm buffer setting menu.Note: You can set the alarm buffer function at alarm buffer page. (Please go “Setting→ Advance → Alarm buffer → Setting”). For more details, you can checkChapter 7.10. Alarm Input: Select the connected alarm. Sensor input1: The external sensor whichis connected to sensor input1 of the alarm input.Note: You can set the alarm input function at alarm input page. (Please go “Setting →Advance → Alarm input → Setting”). For more details, you can check Chapter7.9.69