Now Shipping! – The EyeLink 3; combined head and eye tracking at up to 1000 Hz.

Getting Started: Getting Started with the Portable Duo
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The EyeLink Portable Duo is a highly portable solution that provides fast, accurate, and reliable eye tracking in a wide range of research scenarios. The compact hardware delivers accurate and precise measures of gaze location and pupil size. The consistent binocular sampling rate, at up to 2000 Hz, enables the most sophisticated and demanding eye-movement research, both in and out of the lab.