

Eye tracking technique | 
Corneal reflection, dark and bright pupil combination, one camera system. | 
Sampling frequency | 
60 Hz | 
Accuracy | 
0.3° at optimal conditions | 
Precision | 
0.10° RMS at optimal conditions | 
Binocular eye tracking | 
Yes | 
Freedom of head movement | 
Width x height: 35 cm x 30 cm (13.78” x 11.81”) at 65 cm (at least one eye tracked) | 
Operating distance | 
45 to 85 cm (18 to 33”) | 
Maximum screen size | 
19” (16:9 aspect ratio) | 
Total system latency | 
17 ms | 
Blink recovery time | 
1 frame (immediate) | 
Gaze recovery time | 
250 ms | 
Data output (for each eye) | 
Timestamp
 | 
Dimensions | 
17 (width) x 1.8 (height) x 1.3 (depth) cm | 
Weight | 
59 g | 
Eye tracking processing | 
EyeChip | 
Connectors | 
USB 2.0 Type A | 
Operating system | 
Windows 10 | 
Tobii Pro Lab | 
Tobii Pro Eye Tracker Manager | 
Tobii Pro SDK | 
Any application built on the Tobii Pro SDK |