F531E & F731E User Manual8.8. MOTION DETECTIONThere are three Motion Detection functions as sensors to set for different detectingzones. Each one has Threshold and Sensitivity inputs which you can adjust tospecific zone sequentially. Motion Detection function can support to FTP, SMTPand Alarm output for capturing and sending images or starting alarm output. Threshold: It means the extent which the alarm will be triggered. Sensitivity: It means that how often the sensor will scan the image different.The higher sensitivity it is and the more frequently it scans.Motion Detection 1: Click it on for using Motion Detection 1 functionas a sensor. You can adjust and move the detecting zone by using mouse.Motion Detection 2: Click it on for using Motion Detection 2 functionas a sensor. You can adjust and move the detecting zone by using mouse.Motion Detection 3: Click it on for using Motion Detection 3 functionas a sensor. You can adjust and move the detecting zone by using mouse.62