Capture high-fidelity gaze, pupil, and eye-openness data for analysis of saccades, microsaccades, fixations, and other fast eye-movement dynamics — while supporting natural head movement. A screen-based research eye tracker for psychology, neuroscience, vision science, and other demanding behavioral research.
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Fast eye-movement dynamics unfold over milliseconds.
At up to 1200 Hz, Tobii Pro Spectrum samples gaze every 0.83 ms, providing the temporal detail needed for demanding analysis of saccades, microsaccades, and other rapid changes in gaze.
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Temporal resolution gaps
For studies of fine saccade dynamics and microsaccades, higher sampling rates provide the temporal detail needed to resolve fast changes in gaze.
Participant variability
Tobii Pro Spectrum combines dual-camera binocular tracking and Tobii 3D eye-modeling technology to support robust measurement across diverse participants and head-free research setups.
Synchronization complexity
Multimodal research requires precise alignment of gaze, stimuli, physiological signals, and events. Tobii Pro Spectrum’s 8-bit TTL input records event timestamps with better than 50 μs accuracy.
Your findings are only as strong as your data. Tobii Pro Spectrum combines dual-camera tracking and Tobii 3D eye-modeling technology to support high-quality gaze data across diverse participants and supported research conditions.
Works across all participants
Designed to support high-quality tracking across diverse participants and research populations, including participants using corrective lenses.
Natural head movement
A 34 × 26 cm head-movement box at 65 cm supports head-free recording and natural movement without a chin rest in many research paradigms.
Optimized for varied lighting
Calibration automatically selects bright- or dark-pupil tracking based on the participant’s eyes and lighting conditions, then keeps that mode fixed throughout recording.
See what affects your data
Eye images at 5 Hz help you inspect eye visibility and tracking conditions during setup and recording, making it easier to diagnose factors that may affect the data.
Researchers at Princeton, Stanford, Cambridge, Harvard, and hundreds of other institutions rely on Tobii Pro Spectrum for research that demands the highest data quality, from cognitive load experiments to autism diagnostics to reading acquisition studies.
Validated with 400+ participants in controlled testing, and built to deliver reproducible results across studies.
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RMS precision accuracy (filtered)
System latency
Typical participant setup time
Gaze recovery time
Tell us about your research goals. Our experts can help you find the right eye tracking setup and approach for your study.
Tobii Pro Spectrum combines high temporal resolution, robust binocular tracking, embedded processing, and flexible installation for demanding eye-movement and behavioral research.
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Patented 3D eye modeling techonology
Supports gaze, pupil diameter, eye openness, and 3D eye-position measurement.
Dual-camera stereo imaging
Two synchronized cameras capture stereo images of both eyes, supporting robust gaze estimation during natural head movement.
Fully embedded, low-latency processing
Gaze processing is performed on the eye tracker, with mean eye-tracker latency below 2 ms at 1200 Hz.
Windows, macOS, Linux — screen or standalone
Use on-screen stimuli or standalone setups with physical objects.
Flexible lab installation
Use the standard screen-mounted setup, approved VESA mounting, or standalone configurations.
Use Tobii Pro Lab from study design to analysis, or extend into custom and multimodal workflows with Tobii Pro SDK and the broader research ecosystem.
Design experiments with images, video, web pages, and real-world stimuli; record synchronized gaze and eye metrics; analyze with fixation filters, AOIs, heat maps, and gaze plots; and export data for further analysis — all without writing code.
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Use Tobii Pro SDK to access eye tracking data and device functionality programmatically, and connect Tobii Pro Spectrum with Python, MATLAB, PsychoPy, Psychtoolbox, LSL, and other research tools.
Explore the Tobii research-community catalogue on GitHub to discover open-source and third-party tools for experiment design, synchronization, analysis, and multimodal workflows.
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Tobii Pro Spectrum arrives fully assembled. No camera alignment, no lens adjustment, no manual configuration — set it on a desk, connect one Ethernet cable, and you're ready to calibrate.
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Connect to your computer via Ethernet. Launch Tobii Pro Lab or Tobii Pro Eye Tracker Manager. Seat your participant at 55–75cm distance. Run a quick calibration, typically under 30 seconds.
No manual camera or lens configuration
Binocular or monocular calibration
Works with on-screen or physical stimuli
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Select the sampling rate appropriate for your study and record gaze, pupil diameter, and eye-openness data at up to 1200 Hz. Use eye images to inspect tracking conditions during the recording.
Fixations, saccades, micro-saccades, and tremors
Timestamped to 100μs accuracy
TTL sync for multimodal setups (EEG, GSR)
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Use Tobii Pro Lab's built-in tools for fixation filtering, AOI analysis, heat maps, and gaze plots. Or export timestamped data for analysis in R, Python, MATLAB, SPSS, and other tools.
Built-in metrics and visualizations
Data export for further analysis
Tobii Pro SDK for custom workflows
Tobii Pro Spectrum is designed for studies where temporal resolution and data quality are non-negotiable. Here's how researchers apply it across disciplines.
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Making the connection between eye movements, cognitive processes, and reactions to expand scientific knowledge of human behavior.
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Eye tracking has become an established tool to objectively measure human language processing and eye movements in reading.
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Enabling researchers to study gaze behavior, one of the first developments, opening the door to a child's mind long before acquiring language.
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Neuroscientists and psychologists use eye tracking in nonhuman primate research to explore evolutionary conserved behaviors and cognitive processes.
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Medical researchers use eye tracking to explore biomarkers for impaired brain function, enabling new tools for diagnosis, rehabilitation, and treatment.
Describe your study, and we'll recommend the right Tobii eye tracker setup.
Tobii Pro Spectrum is the best device in the market for our research. We want the equipment to have high resolution but also to be relatively simple to use. Tobii Pro Spectrum is very flexible to multiple settings and can be used for different purposes.
Marco A. Palma
Associate Professor Department of Agricultural Economics and Director of the Human Behavior Laboratory, Texas A&M AgriLife, Texas A&M University
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The Tobii eye tracker is fast enough to provide very good temporal resolution of waveforms and the Tobii software interface is by far the most user-friendly of all eye tracker manufacturers. Its setup is also extremely user-friendly and implementation of stimuli far easier than other more complex eye tracking software.,
Dr. Larry Abel, PhD
Senior Lecturer, Department of Optometry and Vision Sciences, The University of Melbourne
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The main advantage of eye tracking is that it doesn’t require children to do or say anything explicit. Often young children or children with autism spectrum disorder are unable to communicate their understanding but that doesn’t mean they don’t understand. Eye tracking enables us to see if they are visually engaging with things that indicate understanding.
Dr. Sudha Arunachalam
NYU Learn Lab Director
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The biggest finding of my work is that eye tracking can be used to define subtypes of autism and diagnose different subsets of kids with very high accuracy...Eye tracking is really telling us quite a bit, not only about diagnosis but also potentially about prognosis and outcomes.
Dr. Karen Pierce
Professor, Department of Neurosciences, University of California San Diego (UCSD) and Co-Director of the UCSD Autism Center of Excellence
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Tobii Pro Spectrum is the best device in the market for our research. We want the equipment to have high resolution but also to be relatively simple to use. Tobii Pro Spectrum is very flexible to multiple settings and can be used for different purposes.
Marco A. Palma
Associate Professor Department of Agricultural Economics and Director of the Human Behavior Laboratory, Texas A&M AgriLife, Texas A&M University
Combine gaze data with physiological measurements and partner solutions to reveal deeper behavioral and cognitive insights.
Tobii Pro Spectrum integrates with EEG, GSR, fMRI, and other physiological measurement systems through both hardware and software sync, giving you aligned, cross-modal data with timestamp accuracy down to 50μs.
Hardware sync: Dedicated 8-bit TTL input port (DB-9 connector) with 256 event codes and 50μs timestamp accuracy — no software jitter.
Software sync: Via Tobii Pro Lab or Tobii Pro SDK for flexible integration with custom experiment software.
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Tobii Pro Spectrum's high-frequency gaze data and absolute pupil diameter measurement make it an ideal data source for partner platforms that transform raw eye tracking signals into higher-order behavioral and cognitive metrics.
Through Tobii's partner ecosystem, you can feed Tobii Pro Spectrum's output into specialized analysis platforms, without building custom pipelines from scratch.
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Three eye trackers, three tiers of capability.
Choose based on the eye movements you need to study and the precision
your research demands.
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Get up and running quickly with a complete package designed for seamless setup and data collection.
Eye tracker unit
Tobii Pro Spectrum with integrated stand and height-adjustable handle.
23.8" EIZO monitor
IPS panel, 1920×1080, pre-configured for Tobii Pro Spectrum.
Power & data cables
24V power supply, Ethernet cable, all connectors.
Quick start guide
Step-by-step setup instructions and calibration guide.
For definitions of the terms used in the tables below, see the
Glossary on Tobii Connect.
For more information about output data and the supplementary data stream, please read the Tobii Pro SDK documentation.
The characteristics of the gaze data from an eye tracker are described in terms of accuracy and precision. For more details, take the Accuracy and precision course in
Tobii Academy.
For additional information, visit our comprehensive FAQ page.
Free training, open-source tools, and direct support, designed to get you from unboxing to publishable results as fast as possible.
Tobii Academy
Free online learning platform with structured courses covering every stage of eye tracking research, from fundamental concepts to advanced analysis techniques.
→ Eye tracking fundamentals and methodology
→ Experiment design best practices
→ Tobii Pro Lab software training
→ Data analysis and interpretation
→ Certification tracks
Open-source research tools
50+ community-curated tools, experiment scripts, and integration libraries across the full eye tracking workflow. PsychoPy, MATLAB, Python, LSL, and more.
Tobii Connect support portal
Knowledge base, firmware updates, troubleshooting guides, and direct support from Tobii's technical team. Your first stop for any hardware or software question.
→ Product setup and troubleshooting guides
→ Firmware and software downloads
→ Data quality methodology documentation
→ Direct ticket support for registered products
→ Sample projects and demo recordings
SDK downloads, API docs, and PyPI packages for custom development.
Whether you're equipping a new lab or upgrading from a lower-frequency tracker, our research advisors will help you find the right configuration.
✓ Personalized hardware and software recommendation
✓ Budgetary pricing for grant applications
✓ Data quality documentation for your specific use case
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Our analytical software helps guide scientific and academic eye tracking research. Take control of your study and analyze the data in detail.
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Free software development kit for building analytical applications for Tobii Pro screen-based research eye trackers. Multiple-platform support for several programming languages.
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Free software to help manage your screen-based eye tracker. This application helps set up the eye tracker, assists with user calibration, and troubleshooting.
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GSR (galvanic skin response) sensor for measuring the electrical conductivity of the skin, which provides a measure of psychological arousal.
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Device by Cedrus® for synchronizing stimuli events with eye tracking data from Tobii Pro Spectrum and physiological data with real-time temporal precision.
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A solution to hold a participant’s head in place when conducting eye tracking experiments with Tobii Pro Spectrum and Tobii Pro Fusion eye trackers.