How do I access items not in my list of items?

In order to pull up an item that is not currently on the list of items to check, you simply need to click on the Search icon in the lower right hand corner of the screen. 

Once you have clicked the Search button, the screen below will pop up and you can decide if you want to want to search for an item by the description or by the UPC.  If you need to get off of this page there is an X in the upper right hand corner of the screen.