Dahua DH-XVR5104HS-4KL-I3 User Manual page 259

In the Refresh Interval box, select data refresh interval. For example, you can select 5 Sec.
You can also display the temperature and humidity data in graphical way by selecting the Display
Chart checkbox.
Click Remove to delete the data.
5.12.2.3 Exporting Temperature and Humidity Data
You can export the temperature and humidity data in .BMP format. This section uses exporting
humidity data as an example.
Prepare a USB device and plug it into the Device.
On the Realtime Display page, click the Humidity tab.
Chart
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User's Manual