Hi @genesis99, thanks for getting in touch. I am afraid that the Tobii Eye Tracker 5 has permitted use of interaction and gaming use only.
For academic research, we offer the Tobii 5L product (https://tech.tobii.com/products/eye-tracker-5l/)
For further information about licencing and sales of the 5L, please contact the team @ https://developer.tobii.com/license-agreement/