You should get $2.00 per day for each day entered. Depending on which version of TurboTax you are using, you may have to make certain entries to actually post the flat-rate amount to your tax return.

Using the FIND button from the top toolbar in TurboTax Online, or the EasyStep view of TurboTax CD/Download, type in Employment as your keyword, highlight Employment Expenses and click Go. 

More information can be found in this FAQ from TurboTax: Employment Expenses Tax Info Centre