Shenzhen Fostar Electronic Co. Ltd FC2501PA ユーザーズマニュアル

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Figure 4.51
 
 Press the left mouse and drag it on the time boxes, you can select the serial area
Ĺ
.
Figure 4.52
Step 09: Click Save button to take effect. 
When the motion has been detected during the detection time in the detection area, the camera will alarm and 
adopt the corresponding alarm indicators. 
NOTE: You must set the detection area and detection schedule, or else there is no alarm anywhere and 
anytime. 
4.5.2    Sound Detection(Only FC2501PA and FC2501P) 
When the ambient sound over a certain decibel ,the sound alarm will be triggered.