The operating distance of a Tobii Eye Tracker is 50 — 95 cm (20 - 37"). It needs to be mounted at the bottom of your screen and you need to be placed within the sensor's field of view. Read more on mounting
Make sure that you are placed comfortably in relation to the optimal positioning of, and distance from, the unit.
The optimal distance that you should be from the Tobii Eye Tracker depends on the size of the screen. You should be positioned at the optimal distance to allow for the best possible performance. Generally, the larger the size of the screen is, the greater the distance you should be from the eye tracker and screen.
Please be aware that the operating distance of our eye trackers is 50 - 95 cm. The max recommended screen sizes are 27" for 16:9 ratio and 30" for 21:9 ratio.
The eye tracker allows for extensive freedom of head movement. Once the eye tracker is properly calibrated and placed in front of you, no further adjustments are required.
Positioning with a mounted wheel
Positioning yourself correctly can be tricky when you have a mounted wheel between you and your screen. So please make sure that the wheel does not obstruct the eye tracker sensors' view of your eyes.