It is a non-intrusive eye movement recording system that combines high-resolution camera technology with image processing algorithms allowing a sampling rate of 250 Hz. This system enables binocular recordings without loss of resolution or accuracy during screen reading tasks. The integrated BeGaze software enables advanced data filtering and analysis such as gaze path, fixation sequences, area of interest analysis or attention maps. The system is portable so it can be used in both laboratory situations and in educational or clinical contexts closer to the reader. Finally, the RED250 system can be integrated with other neurophysiological recording system such as EEG or biosensors.