Night Owl ADV1-168500 user manual - Manual (Page 66)

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Information Menu
Use this menu to access the Device, Network, Online, and Record
Information menus.
Be sure to Apply all changes made to the menus. If you do not
apply the changes, they will not be saved.
You can also select the Default button on any page to restore the
DVR’s original settings.
Chapter 18: Information Menu