Tobii Pro Fusion User manual

Tobii Pro Fusion Eye Tracker
User’s Manual

User’s manual Tobii Pro Fusion Eye Tracker
Version 1.9
12/2019
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Content subject to change without notice.
Please check Tobii web site www.tobiipro.com for updated
versions of this document.

Table of Contents
1 Introduction ................................................................................................................................... 1
1.1 Symbols used in this document ..............................................................................................1
1.2 Tobii Pro Eye Tracker Manager ..............................................................................................1
2 System Requirements ................................................................................................................. 2
2.1 System requirements ............................................................................................................2
2.2 Additional Tobii Pro software ..................................................................................................2
3 Safety............................................................................................................................................ 3
3.1 Mounting warning..................................................................................................................3
3.2 Emergency warning ..............................................................................................................3
3.3 Epilepsy warning...................................................................................................................3
3.4 Infrared warning....................................................................................................................3
3.5 Magnetic field warning...........................................................................................................3
3.6 Child safety...........................................................................................................................3
3.7 Electricity..............................................................................................................................4
3.8 Accessories..........................................................................................................................4
3.9 Third party ............................................................................................................................4
3.10 Power supply........................................................................................................................4
4 Overview of Tobii Pro Fusion........................................................................................................ 5
4.1 Key features .........................................................................................................................5
4.2 How Tobii Pro Fusion works ...................................................................................................5
4.3 Product versions ...................................................................................................................5
4.4 What’s in the box...................................................................................................................6
4.5 USB and power adapter ........................................................................................................7
4.6 How to use the USB Type-A to Type-C adapter .......................................................................7
4.7 Attach the adapter plug..........................................................................................................9
4.8 Remove the adapter plug from the AC power adapter ............................................................10
4.9 Tobii Pro accessories...........................................................................................................10
5 Set up your Tobii Pro eye tracker.................................................................................................11
5.1 Download and install Tobii Pro Eye Tracker Manager ............................................................. 11
5.2 Install Pro Fusion in Tobii Pro Eye Tracker Manager............................................................... 11
5.3 Mount the eye tracker on a laptop or monitor ......................................................................... 11
5.4 Display setup in Tobii Pro Eye Tracker Manager ....................................................................13
5.5 Calibration..........................................................................................................................14
5.5.1 What calibration does...........................................................................................14
5.6 Detach the eye tracker.........................................................................................................14
5.7 Change Pro Fusion’s frequency ...........................................................................................14
6 Display Setups............................................................................................................................ 15
6.1 Standard setup ...................................................................................................................15
6.2 Advanced setup ..................................................................................................................15
6.2.1 Setup with Tobii Pro Tripod Stand..........................................................................15
7 Start Experimenting .................................................................................................................... 17
7.1 Start eye tracking ................................................................................................................17
7.2 Tobii Pro Lab.......................................................................................................................17
7.3 Keeping your eye tracker software and display setup updated ................................................17
7.4 Customer Support...............................................................................................................17

8 Product Care............................................................................................................................... 18
8.1 Operational Environment .....................................................................................................18
8.1.1 Transportation and storage...................................................................................18
8.1.2 Cleaning..............................................................................................................18
8.1.3 Disposal of the eye tracker....................................................................................18
Appendix A Support, Learning Center, and Warranty .................................................................... 19
A1 Customer Support...............................................................................................................19
A1.1 Get help online ....................................................................................................19
A2 Learning Center ..................................................................................................................19
A3 Warranty information ...........................................................................................................19
Appendix B Compliance Information .............................................................................................. 20
B1 Compliance ........................................................................................................................20
B1.1 FCC interference statement..................................................................................20
B1.2 Industry Canada statement...................................................................................20
B1.3 CE statement.......................................................................................................20
B1.4 Safety compliance................................................................................................20
B1.5 EMC compliance..................................................................................................20
Appendix C Technical Specifications .............................................................................................. 22
C1 Eye tracking specifications...................................................................................................22
C2 Tobii Pro Fusion Eye Tracker specifications...........................................................................22
C3 Limitations and considerations .............................................................................................23
C3.1 Intended use .......................................................................................................23
C3.2 Light conditions....................................................................................................23
C3.3 Eyelashes ...........................................................................................................23
C3.4 Droopy eyelids.....................................................................................................23
Appendix D Glossary ...................................................................................................................... 24
D1 Glossary.............................................................................................................................24

1 Introduction
Tobii Pro Fusion is a compact, high performance data collection solution that you can take into the field. Use Pro Fusion
when your research takes you to locations and to subjects that would otherwise be hard to bring to the lab. You can collect
data in schools, hospitals, libraries, and other locations where your subjects are easier to recruit.
With sampling frequencies of up to 250 Hz, two eye tracking cameras, and two pupil tracking modes (bright and dark pupil),
Pro Fusion enables you to adapt your data collection setup to different research populations, scenarios, and data
requirements.
Use Pro Fusion for studies on:
• Windows laptop and desktop computers
• PC monitors, 24″ (16:9) or less as optimum size
• Real-world setups such as physical objects and social interactions (using the Tripod Stand)
• Projections, simulators, and larger screens (using the Tripod Stand)
Tobii Pro Fusion is primarily designed for use in indoor office environments with adult participants.
1.1 Symbols used in this document
In this manual we use symbols for three levels of information:
The Note symbol is used for notifying the user of something important or of something that needs special
attention.
The Caution symbol is used to inform of something that could cause harm to, or malfunction of, the equipment.
The Warning symbol is used to inform of something in which there is a conceivable risk of harm to the user if the
Warning is ignored.
1.2 Tobii Pro Eye Tracker Manager
Pro Eye Tracker Manager is free software available on the Tobii Pro Products webpage.
It helps you manage your screen-based eye tracker. It lets you see which eye tracker firmware and software versions you
are running and also facilitates updates where applicable. It provides:
• Drivers and Firmware installation or updates
• Display setup
• Positioning guide
• User calibration
• Gaze visualization*
You can read more about Pro Eye Tracker Manager specifications and how it works with Tobii Pro eye trackers
on the Tobii Pro Eye Tracker Manager Product page.
References in the manual to Tobii Pro Eye Tracker Manager refer to the latest version available on Tobii Pro’s
website.
*Gaze visualization in Pro Eye Tracker Manager lets you quickly evaluate the quality of the eye tracking data.
The Gaze visualization overlaps data only on the Pro Eye Tracker Manager screen while Eye Tracker Manager
is open.
Tobii Pro Fusion Eye Tracker User’s manual v.1.9 - en-US 1 Introduction 1

2 System Requirements
2.1 System requirements
Operating system Windows 10
CPU 1 GHz, 2 cores
RAM 2 GB RAM memory*
*Software for eye tracking research may require higher RAM
Port USB Type-A or USB Type-C
2.2 Additional Tobii Pro software
Pro Lab
tobiipro.com/product-listing/tobii-pro-lab/
Pro Lab is a comprehensive research software platform for
eye tracking designed to meet the highest demands on dif-
ferent research scenarios with exact timing accuracy. This
software offers an efficient workflow, making it easy to de-
sign experiments, record data, analyze and visualize eye
tracking data, and to sync this data with other biometric da-
ta streams.
Pro SDK
tobiipro.com/product-listing/tobii-pro-sdk/
Pro SDK offers a broad set of tools that makes it simple to
develop a variety of niche applications or scripts across
multiple platforms, using a wide range of programming lan-
guages. This SDK gives the researcher access to the full
set of relevant gaze data streams, such as 3D eye coordi-
nates, raw data, pupil data, etc.
Third-party software This term refers to any application built on Pro SDK.
22 System Requirements Tobii Pro Fusion Eye Tracker User’s manual v.1.9 - en-US

3 Safety
3.1 Mounting warning
Pro Fusion should be mounted according to Tobii Pro´s instructions for approved mounts.
The mounting bracket is designed for adhesion to a wide variety of surfaces, such as monitors or laptop screens.
It is also designed for clean removability. Failure to follow the recommended removal instructions can result in
damage to both the monitor/laptop and the mounting bracket. Do not mount the Pro Fusion on monitors posi-
tioned above the head or face of a user, as it might fall.
3.2 Emergency warning
Pro Fusion is to be used for research purposes only. Be aware that due to the low, but possible risk of failure or
distraction, Pro Fusion should not be relied upon or used in dangerous or otherwise critical situations.
3.3 Epilepsy warning
Some people with photosensitive epilepsy are susceptible to epileptic seizures or loss of consciousness when
exposed to certain flashing lights or light patterns in everyday life. This may happen even if the person has no
medical history of epilepsy or has never had any epileptic seizures.
A person with photosensitive epilepsy would also be likely to have problems with TV screens, some arcade
games, and flickering fluorescent bulbs. Such people may have a seizure while watching certain images or pat-
terns on a monitor, or even when exposed to the light sources of an eye tracker. It is estimated that about 3-5%
of people with epilepsy have this type of photosensitive epilepsy. Many people with photosensitive epilepsy expe-
rience an “aura” or feel odd sensations before the seizure occurs. If you feel odd during use, move your eyes
away from the eye tracker.
3.4 Infrared warning
When activated, Pro Fusion emits pulsed infrared (IR) light. Certain medical devices are susceptible to disturb-
ance by IR light and/or radiation. Do not use Pro Fusion when in the vicinity of such susceptible medical devices,
as their accuracy or proper functionality could be inhibited. Do not stare into the LED lights at a close distance
(<15cm).
3.5 Magnetic field warning
Pro Fusion contains magnets. Magnetic fields may interfere with the function of cardiac pacemakers and implant-
able cardioverter defibrillators. As a general rule, maintain a minimum distance of 6 inches (15 centimeters) be-
tween any item with magnets and your heart device.
3.6 Child safety
Pro Fusion is an advanced computer system and electronic device. As such, it is composed of numerous sepa-
rate, assembled parts. In the hands of a child, certain of these parts have the possibility of being separated from
the device, possibly resulting in a choking hazard or other danger to the child.
Young children should not have access to, nor use of the device or its accessories without parental or guardian
supervision.
Tobii Pro Fusion Eye Tracker User’s manual v.1.9 - en-US 3 Safety 3

3.7 Electricity
Do not open the casing of the Pro Fusion device, since you may be exposed to potentially hazardous electrical
voltage. The device contains no user-serviceable parts. Noncompliance will result in loss of warranty! Contact To-
bii Pro Support if your Pro Fusion is not working properly.
3.8 Accessories
Only use accessories provided by or approved by Tobii Pro AB.
3.9 Third party
Any use of Pro Fusion outside the intended use and together with any third-party software or hardware that
changes the intended use is a risk, and this is not a scenario for which Tobii Pro AB can take any responsibility.
3.10 Power supply
Only use the AC power adapter provided by Tobii Pro to power your Pro Fusion. If the AC power adapter is dam-
aged, it should be replaced only by Service Personnel. If damaged, do not use the AC power adapter until it has
been replaced. Tobii Pro and its agents are not liable for any damages or injuries to a person or property due to
wrong use of the provided accessories.
43 Safety Tobii Pro Fusion Eye Tracker User’s manual v.1.9 - en-US

4 Overview of Tobii Pro Fusion
4.1 Key features
Figure 4.1 Tobii Pro Fusion key features
4.2 How Tobii Pro Fusion works
During tracking, eye trackers from Tobii Pro use infrared illuminators to generate reflection patterns on the corneas of the
participant’s eyes. These reflection patterns, together with other visual data about the participant, are collected by image
sensors. Sophisticated image processing algorithms identify relevant features, including the eyes and the corneal reflec-
tion patterns. Tobii Pro Fusion is a dual camera system that automatically chooses when to use dark or bright pupil track-
ing. Complex mathematics is used to calculate the 3D position of each eyeball along with the gaze point (where the
participant is looking).
4.3 Product versions
Pro Fusion is available in two product versions: 250 Hz and 120 Hz. The values denote the eye tracker’s maximum sam-
pling frequency, but it can be used at lower settings as well.
250 Hz version:
The 250 Hz version can operate at these frequencies: 60, 120 & 250 Hz.
Dark pupil tracking is supported in all sample frequencies. Bright pupil tracking mode is supported at 60 and 120 Hz.
120 Hz version:
The 120 Hz version can operate at these frequencies: 60, 120 Hz. The 120 Hz version can be upgraded to the faster ver-
sion by contacting your sales representative.
Dark pupil tracking is supported in all sample frequencies. Bright pupil tracking mode is supported at 60 and 120 Hz.
For more information, read Appendix C Technical Specifications, page 22
Tobii Pro Fusion Eye Tracker User’s manual v.1.9 - en-US 4 Overview of Tobii Pro Fusion 5

4.4 What’s in the box
Figure 4.2 What’s in the box
Number Item More information
1 Travel case Stores, protects, and carries Pro Fu-
sion and the included accessories
2 Pro Fusion eye tracker Used for eye tracking
3 AC power adapter Provides the additional power re-
quired when the USB Type-A to Type-
C adapter is used
4 Safety and Compliance leaflet Printed version of important
information
5USB Type-A to Type-C adapter plug Used when the computer does not
have a USB Type-C port
6 6 plug adapters Used with the AC power adapter to
match region-specific outlets
7Cleaning cloth For cleaning the surface of the eye
tracker
8 Four mounting brackets with non-per-
manent adhesive
Attaches the Pro Fusion eye tracker
to the screen bezel
9 Four cleaning wipes Removes any dust and grease in the
area around the screen before attach-
ing a mounting bracket
64 Overview of Tobii Pro Fusion Tobii Pro Fusion Eye Tracker User’s manual v.1.9 - en-US

4.5 USB and power adapter
Figure 4.3 The fixed USB cable is on the right side of Pro Fusion and the power supply port is on the left side
The left side of the Pro Fusion eye tracker has a jack for plugging in the AC power adapter.
The right side of the Pro Fusion eye tracker has a fixed USB cable that plugs into the computer’s Type-C port or into a
Type-A port using the included USB Type-A to Type-C adapter. Read 4.6 How to use the USB Type-A to Type-C adapter,
page 7.
When using the Type-A to Type-C adapter, you should also use the AC power adapter since Type-A ports can
deliver less power. Your computer’s power settings can also influence the amount of power delivered to
peripherals.
4.6 How to use the USB Type-A to Type-C adapter
Pro Fusion is connected to a computer via a standard USB Type-C interface.
The USB Type-C interface enables a better user experience over the older Type-A interface due to its higher data transfer
rate, symmetrical connector which eliminates the “right side up” problem, and increased power. If your computer does
Tobii Pro Fusion Eye Tracker User’s manual v.1.9 - en-US 4 Overview of Tobii Pro Fusion 7

not have a USB Type-C connection, you must use the included USB Type-A to Type-C adapter and the power
adapter with your Pro Fusion.
Figure 4.4 USB Type-A to Type-C adapter
What to do:
1. Plug the USB Type-A to Type-C adapter into the USB end of the cable.
2. Plug the cable with the adapter into the computer.
3. Attach the correct adapter plug for your country to the AC power adapter. See 4.7 Attach the adapter plug, page 9.
4. Plug the AC power adapter into the left-hand side jack on the eye tracker.
5. Plug the AC power adapter and adapter plug into a power outlet.
84 Overview of Tobii Pro Fusion Tobii Pro Fusion Eye Tracker User’s manual v.1.9 - en-US

4.7 Attach the adapter plug
Figure 4.5 International plug adapters
How to use the international adapter plugs:
1. Select the correct plug adapter for your region.
2. Line up the rounded top of the plug adapter with the top of the AC power adapter.
Tobii Pro Fusion Eye Tracker User’s manual v.1.9 - en-US 4 Overview of Tobii Pro Fusion 9

3. Click the adapter plug into the AC power adapter at an angle, starting with the upper part first and then the lower
part.
Figure 4.6 Snap in the adapter plug, starting at the rounded top
4.8 Remove the adapter plug from the AC power adapter
When storing the AC power adapter in the eye tracker case, you will need to remove the adapter plug so that it fits in the
case. You may also need to exchange one plug adapter for another if you travel with your eye tracker to another country.
How to remove an adapter plug:
1. Use your thumb to draw the latch underneath the AC power adapter down to release the clip.
2. Remove the adapter plug starting by withdrawing the lower part first and then the upper part.
4.9 Tobii Pro accessories
Find out more about Tobii Pro products and accessories on the Tobii Pro website.
10 4 Overview of Tobii Pro Fusion Tobii Pro Fusion Eye Tracker User’s manual v.1.9 - en-US

5 Set up your Tobii Pro eye tracker
At the end of this setup, you will have a verified installation that is ready for use.
5.1 Download and install Tobii Pro Eye Tracker Manager
The first step is to get the free software, Pro Eye Tracker Manager on your computer. Setting up your eye tracker involves
installing the necessary drivers and software on your computer. Pro Eye Tracker Manager makes this easy. Read 1.2 Tobii
Pro Eye Tracker Manager, page 1.
Your eye tracker does not need to be connected to the computer to install Pro Eye Tracker Manager.
1. Before starting, double-check the hardware and system requirements, 2 System Requirements , page 2. You
should also check the requirements for your analysis software, for example, Tobii Pro Lab.
2. Download Pro Eye Tracker Manager from Tobii Pro’s product page.
3. Open Pro Eye Tracker Manager and follow the prompts to finish installation.
5.2 Install Pro Fusion in Tobii Pro Eye Tracker Manager
Now it’s time to make sure your computer can communicate with your eye tracker. This is necessary for downloading the
proper driver updates.
1. Open Pro Eye Tracker Manager if it is not already open.
2. Connect Pro Fusion's USB cable to a Type-C port in your computer. If your computer does not have a USB Type-C
port, read 4.6 How to use the USB Type-A to Type-C adapter, page 7. Do not mount the eye tracker just yet, just
plug in the USB so you can make sure everything’s working.
If the included USB Type-A to Type-C adapter is used then AC power adapter must also be used. Read
more in 4.6 How to use the USB Type-A to Type-C adapter, page 7.
3. If your Pro Fusion is connected to the USB port but doesn’t appear in the list of connected eye trackers, click the
plus (+) symbol in the upper right corner to install (or re-install in some cases) the required drivers. Sometimes re-
moving the USB and plugging it in again is necessary.
4. Select Pro Fusion and click the Install button.
5. Follow the prompts in Pro Eye Tracker Manager to finish the installation.
5.3 Mount the eye tracker on a laptop or monitor
To ensure quality in eye tracking data, the Pro Fusion hardware package includes several mounting brackets that can be
affixed to a laptop or monitor. You can easily snap the eye tracker on and off the laptop using the magnetic mounting brack-
et. The mounting bracket sticks to the frame with a special adhesive that doesn’t damage the underlying surface when the
bracket is removed. To detach the eye tracker, see 5.6 Detach the eye tracker, page 14.
What to do:
1. Make sure the eye tracker is attached to the monitor and connected to your computer. Open Pro Eye Tracker Man-
ager. You should be able to see and expand your eye tracker’s “card” in Pro Eye Tracker Manager. The serial num-
ber of your eye tracker should match the number displayed.
2. You can leave your eye tracker USB cable connected with the eye tracker to the side (for example on the table) or
you can disconnect it while you attach the mounting bracket.
3. If you plan to attach the eye tracker to a laptop, make sure the laptop can close with the magnetic mounting bracket
attached. Some laptops have very little space when closed.
Tip: You can test whether you can close the laptop with the mounting bracket by placing the mounting bracket (with
the backing paper still attached) on the keyboard side of the laptop and carefully closing the laptop lid. Watch for
any potential interference between the screen, bracket, and keyboard.
4. Find the center of the screen and clean the bezel with one of the included cleaning wipes.
Tobii Pro Fusion Eye Tracker User’s manual v.1.9 - en-US 5 Set up your Tobii Pro eye tracker 11

5. Peel the adhesive tape off the mounting bracket and mount it on the bezel so that your Pro Fusion is as close to the
bottom of the screen as possible without covering the screen. Press the bracket against the bezel for 30 seconds
and wait one hour before attaching the eye tracker.
6. Attach the eye tracker, making sure that it aligns properly with the mounting bracket. The magnet holds the eye
tracker firmly in place when the slots are lined up correctly.
7. If it is not still connected, plug in the eye tracker’s USB cable to the correct USB port in your computer.
Note: The included USB Type-A to Type-C adapter and the eye tracker AC power adapter must be used if the com-
puter does not have a USB Type-C port. Read 4.6 How to use the USB Type-A to Type-C adapter, page 7.
8. Move to the next step.
Figure 5.1 Align the eye tracker properly with the mounting bracket. The magnet holds the eye tracker firmly in place when
the slots are lined up correctly.
12 5 Set up your Tobii Pro eye tracker Tobii Pro Fusion Eye Tracker User’s manual v.1.9 - en-US

Figure 5.2 Place the mounting bracket on the bezel so that the Pro Fusion is as close to the bottom of the screen as possi-
ble without covering the screen.
If the screen bezel is thinner than the height of the eye tracker, affix the mounting bracket as low as possible on
the screen frame, or directly on the screen. Don’t use this setup if you intend to put stimuli in the lower part of the
screen, as they might become covered by the eye tracker.
• Some laptops are very thin and there is little space between the screen and the keyboard when the laptop is
closed. We recommend that you check whether the laptop can close with the mounting bracket present be-
fore you attach it.
5.4 Display setup in Tobii Pro Eye Tracker Manager
Now the algorithms on the eye tracker need to understand where the eye tracker is in relation to the screen and map the
gaze points accordingly.
1. Open Pro Eye Tracker Manager if it’s not already running, and select your eye tracker.
2. On the Overview tab, locate Display Setup and click the ellipsis icon to the right. On the drop-down menu, click
New.
3. Select Regular setup and click the Next button.
4. If multiple screens are used, select the screen that has the Pro Fusion attached to its bezel.
5. Enter the position of the eye tracker in relation to the screen. Use the radio buttons to select whether the eye tracker
is positioned under or over the screen and enter the measurement in millimeters.
6. Align the dotted orange lines on the screen with the two outer white marks on the top of your Pro Fusion.
7. Save your display by naming the setup and clicking the Save button.
8. To confirm that Pro Fusion can detect your eyes, enable the Position Guide at the bottom left of Pro Eye Tracker
Manager. Once activated, you should be able to see two “eyes” in a face contour.
9. In the next section, you will test your setup by performing a calibration. See 5.5 Calibration, page 14
You can always return to Pro Eye Tracker Manager and use it when you change computers or screens or want to
recalibrate.
Tobii Pro Fusion Eye Tracker User’s manual v.1.9 - en-US 5 Set up your Tobii Pro eye tracker 13

5.5 Calibration
When you are done configuring your eye tracker, you should run a calibration to test to see if the eye tracker is mapping
the gaze points correctly to your display.
How to test your eye tracking setup in Pro Eye Tracker Manager:
1. Make sure the eye tracker is attached to the screen bezel and connected to your computer. Open Pro Eye Tracker
Manager. Read 1.2 Tobii Pro Eye Tracker Manager, page 1.
2. By now you should have also tested your setup as described in 5.4 Display setup in Tobii Pro Eye Tracker Manager,
page 13
3. Click the Calibrate button in Pro Eye Tracker Manager and follow the on-screen instructions.
4. Evaluate your calibration results. Large systematic errors i.e. a large distance between the average gaze point and
the target gaze point may be indicative of a configuration error. No calibration feedback data on the targets located
on the top of the screen may indicate that there is a mismatch between the screen size and eye tracker configura-
tion. Click the Recalibrate button to improve an unsuccessful calibration (e.g. recalibrate points with missing data).
Click the Use Calibration button when you are satisfied with the calibration.
You can toggle on and off Gaze Visualization in the upper left corner of the Calibration Results window (or on the
Overview tab). This can be used to confirm the participant’s calibration results.
5.5.1 What calibration does
The human eye shows a natural individual variation in its shape and geometry. For example, the exact location of the fo-
vea, the area responsible for the part of the visual field that we perceive in focus and full color, varies from individual to indi-
vidual. Tobii Pro Eye Trackers use an individual calibration procedure to optimize their gaze estimation algorithms (i.e. the
3D eye model) and account for this variation. The end result of this optimization is a fully customized and more accurate
gaze point calculation. Additionally, some Tobii Pro eye trackers use the calibration procedure to select the detection mode
(e.g. dark or bright pupil tracking) that provides the most accurate data.
You can do basic calibration in Tobii Pro Pro Eye Tracker Manager. There is more functionality, including calibration valida-
tion, in Tobii Pro Lab.
For more information, read the Learning articles calibration and performing a calibration and validation in Pro Lab.
5.6 Detach the eye tracker
To temporarily remove the eye tracker, gently pull it away from the magnetic mounting bracket and leave the bracket in
place.
To permanently remove the mounting bracket, you must remove the nonpermanent but strong adhesive that fastens your
eye tracker mounting bracket to the screen bezel. Since it is fairly strong, you may not be able to take it away with only your
fingers. If you want to remove it, we recommend using something very thin such as dental floss or a thin thread, a plastic
guitar pick, or a credit card. Use this to slide between the mounting plate and the computer bezel (or whatever it is attached
to). As you slide it behind the mounting plate, gently bend the mounting plate towards you so that it detaches.
The mounting bracket adhesive should be removed carefully. If placed over a manufacturer logo on the bezel, re-
moving the mounting bracket could damage the logo.
You can purchase additional mounting brackets. For more information, read Additional Mounting Brackets on the Tobii Pro
website.
5.7 Change Pro Fusion’s frequency
You can change Pro Fusion’s frequency using Tobii Pro Eye Tracker Manager or your analysis software, for example, Tobii
Pro Lab.
In Pro Eye Tracker Manager, use the Frequency drop-down selector on the Overview tab to select an available
frequency.
14 5 Set up your Tobii Pro eye tracker Tobii Pro Fusion Eye Tracker User’s manual v.1.9 - en-US