Tobii Pro Spectrum
Features
High performance for extensive behavior research
The Tobii Pro Spectrum is our latest and most advanced eye tracking platform, designed for extensive studies into human behavior and the mechanics of the fastest eye movements. While capturing data at speeds up to 600 Hz, it still allows for natural head movement, which opens up new possibilities in fields like psychology, developmental studies, neuroscience, reading research, and ophthalmology.
The Pro Spectrum is designed to ensure the highest data quality and reproducibility through evolving, patented eye tracking algorithms from Tobii, sophisticated hardware design, and premium hardware components.
Flexible set-up and sync options
The Pro Spectrum provides exceptional flexibility, accommodating a wide array of research scenarios and study designs.
This system can be used with the provided screen or with the eye tracker alone, enabling both on-screen and real-world stimuli, such as physical objects or people. Multiple sampling rate options accommodate everything from fixation-based research to studies with more intense requirements on data granularity and time-based measurements.
The TTL port and precise timing enable seamless synchronization capabilities with external biometric data sources, providing a holistic view of behavior.
- 8-bit TTL port receiving sync events from external systems
- Easily removable 24" screen
Freedom of movement
The Pro Spectrum is a high-frequency system that provides saccadic event resolution, while still allowing for natural head movement.
This combination of capabilities allows researchers to deeply explore human behavior and cognitive processing, as well as the mechanics of the fastest eye movements (e.g. saccades, tremors, and micro-saccades), without interfering with the natural behavior of the subject. With its ability to track freely-moving subjects, the Pro Spectrum easily facilitates research with children and other participants who would otherwise need a chinrest to control their movement.
- Very high tolerance for both large and fast head movements in all directions
- Tracking resumes quickly if the subject moves in and out of the track box
The Tobii Pro systems offer an unobtrusive means to collect data which ensures a more comfortable experience for our participants. The data is extremely rich and often provides insights into cognitive processes that cannot be attained from standard behavioral responses such as reaction time and choice.
Data you can trust
The Pro Spectrum is extremely accurate and precise with unparalleled tracking robustness, which makes it possible to study a very large portion of the population in many real-life conditions.
- The 3-D eye model delivers superior gaze data, including wide gaze angles and all corners of the screen
- Two eye tracking cameras, both taking up to 600 images per second of both eyes
- Demonstrates extremely robust tracking capabilities, regardless of ethnicity, age, or corrective lenses
- Detects eyes instantly with minimal data loss during blinks or when subjects look away
- Maintains high accuracy, precision, and tracking robustness during subjects' head movements and in different lighting environments
- Allows precise synchronization of gaze information with data from other sources, such as EEG, GSR, or ECG
- Captures pupil data at the same sampling rate as the gaze data
- Provides eye images to allow researchers to understand what is affecting the data
Simple, ingenious design
The Pro Spectrum's simple setup, configuration, and automation allow you to add advanced eye tracking to your research with little effort. Researchers at all levels of expertise can use the system without needing extensive training.
The eye tracker comes fully assembled in the supplied travel case and doesn't require manual configuration with the setup of cameras, lenses, etc. Researchers can rely on quick, stable calibration of subjects and productively track the subjects they have attained for their study.
- Software for the stand-alone configuration accommodates studies that involve real-world stimuli
- VESA mounting available for fixed table or wall installation
- Handle allows for smooth adjustment when accommodating subjects of different heights
“It is essential that eye trackers can tolerate head movement while providing high level eye tracking capacity to enable tasks that better reflect real-world scenarios. Fast processing eye tracking with freedom of head movement opens up new opportunities for innovative mental health research.”
Transparent product quality methods
The Pro Spectrum's high data quality has been confirmed through extensive testing. We use well-documented test methods that span from systematic variations of the environmental conditions to a general assessment of the eye tracker performance with a large population of individuals.
Consistent reproducibility in studies is guaranteed with quality control procedures throughout the entire production process, including camera focus and the calibration of each unit. Multiple product certifications ensure that quality and user safety requirements are met.
Tobii Pro SDK
The Tobii Pro SDK provides a comprehensive toolkit for researchers and partners who wish to develop analytical applications or scripts to use with the Pro Spectrum and other screen-based eye trackers from Tobii Pro.
This SDK gives access to the full set of advanced gaze data streams that are relevant to your research, and advanced timing support automatically compensates for time differences in real time, providing millisecond synchronization accuracy.
The Pro SDK offers multi-platform support (including the latest versions of Windows, Linux, and Mac) and API bindings for several programming languages (.NET, Python, and Matlab).
Components
Eye tracker unit
The eye tracker unit can be used together with the provided monitor, or it can be used alone with other screens or real-world stimuli.
This unit, without the monitor, measures 55 cm x 18 cm x 6 cm (22" x 7" x 2"). The eye tracker is mounted on a stand, which raises it from the surface with 9 cm (approx. 4").
Monitor
The removable high-resolution 24" monitor accommodates the display of on-screen stimuli and has been carefully selected from a high-quality display manufacturer to meet the highest demands on stimuli presentation.
A low and stable response time of less than five milliseconds makes it suitable for studies where control of the timing of the stimuli presentation is essential. The IPS panel has a 178-degree viewing angle, which ensures a consistent experience of the stimulus presented, independent of where the subject is positioned.
We recommend using this monitor, but optionally other monitors can be used too.
Eye Tracker Manager
The Eye Tracker Manager application helps users of the Tobii Pro SDK manage the eye tracker. This tool helps with changing the sampling frequency, updating the firmware, or configuring the hardware to a standalone scenario, when the setup does not require the included monitor.
Eye Tracker Manager is currently only available for Pro Spectrum and works with both Windows and Mac.
To download the Eye Tracker Manager free of charge, go here.
Specifications
Eye tracking specifications
| Eye tracking technique |
Binocular bright and dark pupil tracking. |
| Sampling frequency | 60, 120, 150, 300, or 600 Hz (max. frequency depends on hardware version) |
| Sampling frequency variability | Less than 0.3% of selected sampling frequency |
| Accuracy* | Approx. 0,4° at 65 cm |
| Precision* | Approx. 0,1° at 65 cm |
| Max. gaze angle | 30° |
| Freedom of head movement |
Width x height: 34 cm x 26 cm at 65 cm (13.5'' x 10'' at 26''). (At least one eye tracked) |
| Operating distance |
55 to 75 cm (22'' and 30'') from the eye tracker reference point |
| Total system latency | Less than 5 ms at 600 Hz |
| Blink recovery time | 1 frame (immediate) |
| Gaze recovery time |
Less than 150 ms |
| Recommended monitor | Supplied 23.8" monitor |
| Data output (for each eye) | Timestamp Gaze origin Gaze point Pupil diameter |
| Eye image data stream | Eye image stream frequency is approximately 30 Hz. Zoomed-in eye images available in tracking mode. Full-frame camera images are available in gaze recovery mode. |
| TTL input stream | 8–bit timestamped data (256 event codes) Event driven detection with a timestamp accuracy of 50 µs |
| Tracker and client time synchronization | Integrated synchronization between the eye tracker time domain and the client computer time domain with an accuracy of 100 µs. |
*) Tobii Pro uses an extensive test method to measure and report performance and quality of data. These accuracy and precision numbers are preliminary. Final numbers will be published when available.
Eye tracker unit
| Dimensions | 55 cm x 18 cm x 6 cm (22" x 7" x 2'') The eye tracker is mounted on a stand, which raises it from the surface by 9 cm (approximately 4"). |
| Weight | 5.1 kg (11.4 lbs.) With the power supply unit, the weight is 5.7 kg (12.9 lbs.). |
| Eye tracker processing | Integrated |
| User camera mount | Standard 1/4" thread |
| Connectors | TTL input: 8-bit (DB-9 connector) Communication: Ethernet (RJ-45 connector) Power supply: 24 VDC (5.5 mm connector) |
| Power | Max. rated power consumption: 96 W Typical power consumption: 60 W |
| External power supply | Input: 100-240 VAC 50/60 Hz Max. rated power consumption: 120 W No load power consumption: <0.15 W Energy efficiency level: VI Complies with EISA 2007/DoE, NRCan, AU/NZ MEPS, EU ErP, and CoC Version 5 |
Monitor
| Monitor model name | EIZO FlexScan EV2451 |
| Panel type | IPS, LED backlight |
| Screen size (diagonal) | 23.8'' |
| Weight | 3.8 kg (8.4 lbs), incl. mounting |
| Aspect ratio | 16:9 |
| Resolution | 1920 x 1080 pixels |
| Screen response time | 5 ms (Gray-to-gray) |
| Connectors |
DVI |
| Built in speakers |
1.0 W + 1.0 W |
| Power supply |
100-240 VAC 50/60 Hz |
| Power |
Max. rated power consumption: 42 W |
Software compatibility
| Tobii Pro Lab |
| Tobii Pro SDK |
| Eye Tracker Manager |
| Any applications built on the Tobii Pro SDK |
Technology
Our eye trackers combine excellent accuracy and precision with an extremely high tolerance for large head movements and a variety of environments. Read more
How do Tobii Eye Trackers work?
In this section we will describe how an eye tracker works. Read more
Learn and support
Psychology and Neuroscience
Eye tracking is used in different fields of psychology and neuroscience to understand how and why eye movements are made and how we gather information with our eyes. Read more
Infant and Child Research
Infant and child researchers use eye tracking to study perceptual, cognitive, and social-emotional development from birth through early adulthood. Read more
Clinical Research
Researchers are seeking to find meaningful analysis of eye movement information to accurately identify and treat ocular disease and disorders such as autism, ADHD, Parkinson’s disease and more. Read more