Tobii Pro Spectrum hero shot
Tobii Pro Spectrum

Deeper insights into human behavior

This high-performance research system captures gaze data at speeds up to 1200 Hz. A screen-based eye tracker for extensive research from fixation-based studies to micro-saccades.

Overview

High performance for extensive behavior research

Tobii Pro Spectrum is our most advanced eye tracking platform, designed for extensive studies into human behavior and the mechanics of the fastest eye movements such as saccades, tremors, and micro-saccades. The system can capture data in high sampling frequency, while still allowing for natural head movement.

Tobii Pro Spectrum used for reading research

Flexible set-up options

Tobii 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 just the eye tracker, enabling both on-screen and real-world stimuli, such as physical objects or people.

Baby looking at puppets using Spectrum

Precis synchronization

Multiple sampling rate options accommodate everything from fixation-based research to studies with more intense requirements on data granularity and time-based measurements.

The 8-bit TTL port and precise timing enable seamless synchronization capabilities with external biometric data sources such as EEG, GSR, or ECG, providing a holistic view of behavior.

Tobii Pro Spectrum

Unmatched freedom of movement

Tobii Pro Spectrum tolerates larger and faster head movements than any other high-frequency screen-based eye tracker on the market. Tracking also resumes quickly if the subject moves in and out of the track box. With its ability to track freely moving subjects, Tobii Pro Spectrum greatly facilitates research with children.

Reading Research with Tobii Pro Spectrum Eye Tracker

Tobii Pro Spectrum Eye Tracker with Gaze Plot

Features

Data you can trust

Tobii 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.

  • Tobii’s patented 3D eye model delivers high-caliber gaze data

  • Two eye tracking cameras, taking up to 1200 images per second

  • Bright and dark pupil illuminators offer superior data regardless of eye shapes, ethnicity or age

  • Detects eyes instantly with minimal data loss during blinks or looking away

  • Allows precise synchronization of gaze information with other data sources

  • Captures pupil data at the same sampling rate as the gaze data

  • Provides eye images to understand what affects the data

  • Maintains tracking robustness in different lighting environments

  • The 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. The 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

Specifications

Technical specifications

Eye tracking technique Video-based pupil- and corneal reflection eye tracking with dark and bright pupil illumination modes.  Two cameras capture stereo images of both eyes for robust accurate measurement of eye gaze and eye position in 3D space, as well as pupil diameter. 
Sampling frequency 60, 120, 150, 300, 600 or 1200 Hz (max. frequency depends on hardware version) 
Accuracy¹0\.3° at optimal conditions 
Binocular eye tracking Yes
Gaze recovery time Less than 150ms
Eye openness data streamEye openness stream has the same frequency as frequency selected for the gaze stream and will have the same timestamps. Eye openness data is provided in millimeters, for each eye individually.
Eye image data stream Eye image stream frequency is approximately 10 Hz (one image with both eyes). Zoomed-in eye images available in tracking mode. Full-frame camera images are available in gaze recovery mode. 
Tracker and client time synchronization Integrated between the eye tracker time domain and the client computer time domain with an accuracy of 100 µs. 
Eye tracking mode Tobii Pro Spectrum has three different eye tracking modes for different groups of primate species:   * Human  * Monkey  * Great ape 
Precision¹0\.01° RMS at optimal conditions² 0\.06° RMS at optimal conditions (raw signal)
Eye tracker latency³ Mean latency < 2 ms @ 1200Hz (SD < 0.2 ms) 
Monocular calibrationYes
Blink recovery time 1 frame (immediate) 
Data sample output⁴Timestamp  Gaze origin  Gaze point  Pupil diameter 
TTL input stream 8–bit timestamped data (256 event codes)  Event driven detection with a timestamp accuracy of 50 µs 
  1. Tobii Pro uses an extensive test method to measure and report performance and quality of data. Please download the Data quality test report for more detailed information.
  2. Applying Savitzky-Golay filtering (settings in Tobii Pro Data quality test report)
  3. Visit Tobii Connect for more information on how to optimize your Pro Spectrum setup. Note: Firmware v.2.2.3 and Pro SDK v.1.9 or later are required to obtain the stated performance.
  4. For the complete list of available data and the supplementary data stream, download the Pro SDK documentation.
Head movement tolerance Excellent Dual-camera system, with more images than a one camera system, gives a more accurate data calculation and the best level of precision and robustness for head movement. 
Freedom of head movement (1) (at 75cm distance) Width x height: 42 cm x 26 cm (16,5" x 10") 
Optimal screen size 24" (16:9 aspect ratio) 
Recommended monitor Supplied 23.8" monitor 
Freedom of head movement¹ (at 65cm distance) Width x height: 34 cm x 26 cm (13.5" x 10") 
Operating distance (mounted on screen) 55 to 75 cm (22" and 30") from the eye tracker 
Tracker setup options²Eye tracker unit can be used alone or together with the monitor or other screens. Can also be used with real-world stimuli. 
  1. Describes the region in space where the participant can move his/her head and still have at least one eye within the eye tracker’s field of view (trackbox) at the specific distance.
  2. Tracker mounted on stand, allows for even larger screens and physical objects to be tracked.
Software and framework compatibility Tobii Pro Lab  Tobii Pro Eye Tracker Manager  Tobii Pro SDK  Any applications built on the Tobii Pro SDK 
Operating system Windows, Mac, Linux 
Hardware versions 300 Hz  600 Hz  1200 Hz 
Dimensions (L x H x W) in cm/inches 55 x 18 x 6 (22"x 7" x 2")  The eye tracker is mounted on a stand, which raises it from the surface by 9cm (approximately 4") 
Connectors TTL input: 8-bit (DB-9 connector)  Communication: Ethernet (RJ-45 connector)  Power supply: 24 VDC (5.5 mm connector) 
Eye tracking cameras 2
Power consumption Typical power consumption: 60 W  Max. rated power consumption: 96 W 
Weight5\.1 kg (11.4 lbs.)  With the power supply unit, the weight is 5.7 kg (12.9 lbs.) 
Data Processing Fully embedded data processing 
Illuminators Dark pupil illumination modules Bright pupil illumination modules 
Power options 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 model name EIZO FlexScan EV2451 
Screen size (diagonal) 23\.8''
Aspect ratio 16:9
Screen response time 5 ms (Gray-to-gray) 
Connectors DVI  VGA  HDMI  Display port  1 port for monitor control (USB 3.0)  2–port USB hub (USB 3.0)  C13 power connector  Audio input connector: 3.5 mm  Headphone jack: 3.5 mm 
Power supply 100-240 VAC 50/60 Hz 
Panel type IPS, LED backlight 
Weight 3\.8 kg (8.4 lbs), incl. mounting 
Resolution 1920 x 1080 pixels
Built in speakers 1\.0 W + 1.0 W
Power Max. rated power consumption: 42 W  Typical power consumption: 13 W  Power Save Mode: 0.5 W  Power Management: Power Save (VESA DPM, DisplayPort -Rev 1.1a, and DVI DMPM) 
Tobii Pro NanoTobii Pro FusionTobii Pro Spectrum
Precision ¹0.10° RMS at optimal conditions³0.04° RMS at optimal conditions² 0.2° RMS at optimal conditions (raw signal) 0.01° RMS at optimal conditions² 0.06° RMS at optimal conditions (raw signal)
Accuracy 0.3° 0.3° 0.3°
Head movement tolerance Good (Single Camera)Excellent (Dual camera)Excellent (Dual camera)
Optimal screen size Up to 24”⁴24” 24”
Freedom of head movement width x height @ 65cm distance (either eye) 35 x 30cm 40 × 25cm 34 x 26cm
Freedom of head movement width x height @ back of headbox (either eye) 45 x 45cm⁵ @80 45 x 30cm @80 42 x 26cm @75
Operating distance (cm in Z direction) 45 - 85cm 50-80cm 55-75cm
Tracker setup optionsTracker mounted at tripod, allows for even larger screens and physical objects to be tracked. Tracker mounted at tripod, allows for even larger screens and physical objects to be tracked. (a) Screen and eye tracker mounted together (b) Standalone eye tracker (c) Tracker and screen mounted on any standard VESA mount (d) Eye tracker used with external monitor
  1. Tobii uses an extensive test method to measure and report performance and quality of data. Please download the Data quality test report for more detailed information.
  2. Applying Savitzky-Golay filtering (settings in Tobii Data quality test report)
  3. Using built in filtering.
  4. For larger screens, the limiting parameter is the quality of the gaze accuracy at the upper corners of the screen when the user sits close to the screen
  5. Cone/circular shaped
4 set up modes of Tobii Pro Spectrum

Transparent product quality methods

Tobii 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.

Simple, ingenious design

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

Components

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.

Tobii Spectrum eye tracker component

Monitor

The removable high-resolution 24" monitor accommodates the display of on-screen stimuli. 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.

Tobii Pro Spectrum monitor

Downloads

Downloads

Fields of use

Tobii Pro Spectrum
Scientific research

Psychology and neuroscience

Making the connection between eye movements, cognitive processes, and reactions to expand scientific knowledge of human behavior.

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Child playing with puzzle pieces
Scientific research

Developmental psychology

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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Woman looking at CT scans
Scientific research

Clinical research

Clinical researchers use eye tracking to explore biomarkers for impaired brain function, enabling new tools for diagnosis, rehabilitation, and treatment.

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How to order

Fill out the form to order your Tobii Pro Spectrum eye tracking system.

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