Cognex supports time-limited USB security keys for application developers or for demonstration purposes. The topic VisionPro Licenses lists all the VisionPro licenses required by specific vision tools.
Development Keys and Demonstration Keys
Refer to the following table for the difference between development and demonstration keys:
| Expiration Period | Session Limit | Can Renew/Extend Licenses? | |
| Development Keys | 13 months | 5 hours (restart the application for another 5 hours) | Yes. Contact your Cognex sales representative or Cognex Customer Support |
| Demonstration Keys | 122 days | None | No |
Check the Time Remaining
Use Cogtool, a utility included with your VisionPro installation, to discover how much time remains on your key.
Enter the following in a command prompt window:
cogtool --print | more
The output shows when the key expires, accurate to within a five minute range:
There is 1 Cognex Security device installed. Cognex Security Key v8 Serial Number: 3-4346701 Device: Wibu CmStick/C, FW 4.05, FAC: 1 Certified Time: 2018-04-03.00:22: License Details: Expires in: 365d 0h 33m ...