Hi @atharvap96 and thanks for your query. In order to be able to use the 4C in conjunction with the Tobii Pro SDK (or Tobii Pro Lab) you will need to purchase a special analytical use licence and unlock file.
For further details, please read more about the analytical licence @ https://analyticaluse.tobii.com/
In addition, for a quote regarding purchase kindly send an email to [email protected]
I would also recommend you double check with Tobii Pro that the 4C will work the Pro Lab Software. I can confirm it will work with the Pro SDK, but the support team at Tobii Pro can let you know.
Please don’t hesitate to let us know if we can be of any further assistance.