A sentinel key is a hardware device required to run certain ESRI Software. Our product listing page indicates which products require it. Using a sentinel key allows the computer to be a license manager. A sentinel key is a one time purchase. Sentinel keys come with license files that are created to specifically match a particular computer.
Sentinel key options:
If you have any further questions, please contact undsoftware@mail.und.edu.
Other Useful ESRI Information:
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