AVer E5000 series - Manual (Page 159)

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3.13 Viewing Sensor Status
[Note] This function can be operated in preview mode only.
User can view the sensor status of NVR/DVR server and IP camera.
1. In preview mode, click + of sensor or click + of camera to expand the list.
2. Right-click on sensor or sensor of camera and a short-cut menu will show up.
3. User should see the current status of sensor.