OOH | SunMatrix Ramble

Theraflu: Thermoscanner

With the start of flu season, Theraflu in Poland wants to create a tool that lets passersby check if they have a fever without interrupting their daily commute.

So Saatchi & Saatchi develops what is billed as the world’s first outdoor ad with a live thermo-scanner camera, able to check the body temperature of the person standing next to it in real time.

The thermo-ad also lets people take a thermo-selfie, which here means a thermal-style image of themselves, download it via a microsite or QR code, and share it using the hashtag #TherafluThermoscanner, or send it by email to their boss as an explanation for absence.

Turning a symptom into an instant public check

The mechanism is a simple swap. Thermal cameras are usually associated with controlled environments like airports or clinics. Here, that same visual language is put into a familiar citylight so the “should I worry?” moment can happen on the street, in seconds. That shift matters because it turns a clinical signal into a low-friction commuter interaction, which is why the idea feels immediately useful instead of purely theatrical.

In European commuter cities, out-of-home works best when it adds utility without forcing people to break stride.

Why it lands

This works because it respects the reality of flu season behavior. Many people keep moving even when they feel off. The installation meets them where they already are, makes the result legible at a glance, and gives them an immediately shareable artifact that doubles as social proof and practical communication.

Extractable takeaway: If your message is health-related and time-sensitive, design a public utility that produces a clear personal output. Then make that output easy to reuse in the next real decision the person has to make.

What Theraflu is really buying

Beyond awareness, the ad builds a reason to act early. It reframes “flu medicine” from a product you remember later into a category you prepare for now, while the viewer is still in the mindset of assessing symptoms and deciding what to do next. The real question is how to make symptom checking feel immediate enough to trigger action before people default to pushing through the day. The stronger play here is utility-led brand framing, not spectacle for its own sake.

What to steal from the Thermoscanner

Embed the benefit inside the medium. If the media unit demonstrates the promise, the claim needs less persuasion.
Make the result portable. A shareable scan turns one interaction into many impressions.
Design for the commute. Fast, glanceable, and low-effort beats “immersive” when people are in motion.
Give sharing a job. Social posting is optional. Emailing a boss is a real utility hook.

A few fast answers before you act

What is the Theraflu Thermoscanner?

It is an interactive outdoor ad that uses a live thermal camera to estimate body temperature in real time and indicate whether a passerby may have a fever.

Why put a thermo-scanner in an outdoor ad?

It makes fever detection feel instant and accessible during daily routines, and it turns a brand message into a practical tool.

What is a thermo-selfie here?

It is a thermal-style image generated from the scan that people can download and share, or send as a message to explain they may be unwell.

What makes this more than a gimmick?

It is tied to a real, time-sensitive decision. “Do I have a fever?” and it delivers an output that can be reused immediately.

How can other brands apply the pattern?

Find a high-friction question people avoid answering, then build a quick public utility that returns a clear personal result and a shareable artifact.

Thalys: Sounds of the City

To encourage people to use the train to go and explore nearby cities, railway service Thalys creates three interactive billboards. Each billboard represents a city, and each is host to more than 1,000 unique sounds from that city.

Pedestrians who walk past these billboards are invited to plug in with their personal headphones and start exploring. So instead of using headphones to block out the city, they are made to use them to rediscover one.

When a billboard becomes a listening device

The mechanism is the whole point. A city map on a billboard doubles as an audio interface. Plug your headphones into different points and you unlock different sounds, turning a familiar out-of-home billboard format into a self-guided micro journey.

That matters because the interface makes exploration feel self-directed, which is why the destination becomes memorable before the trip starts.

In European high-speed rail travel, nearby cities compete on spontaneity and sensation as much as price or schedule.

Why it lands

This works because it flips a modern habit. Headphones usually remove you from your surroundings. Here they pull you into a destination you have not reached yet, using curiosity and discovery instead of discounts and slogans.

Extractable takeaway: If your audience already carries an interface, design the experience so their default behavior becomes your entry point. Then reward exploration with variety, so people keep trying “one more” interaction.

What Thalys is really selling

The real question is not how loudly you advertise a nearby city, but how quickly you make it feel explorable.

For travel brands, a sensory preview like this is stronger than another fare-led message.

The campaign sells proximity. You do not need a long promise about travel. You get a sensory preview that makes the next city feel close and personally explorable, even in the middle of your current one.

What travel marketers can lift from this

Turn passive media into a tool. If the unit does something, people approach it voluntarily.
Build a library, not a single message. 1,000+ sound fragments makes repeat interaction feel natural.
Use “rediscovery” as the hook. Familiar objects can become new experiences with one clever twist.
Let the audience choose the path. Interactivity creates viewer control and longer dwell time.

A few fast answers before you act

What is Thalys “Sounds of the City”?

It is a set of interactive billboards that let passersby plug in headphones and explore a city through a large library of location-specific sounds.

Why use sound instead of visuals?

Sound creates immersion fast and feels personal through headphones. It also differentiates travel advertising that usually relies on images.

What behavior does the idea exploit?

People already carry headphones and use them in public. The billboard redirects that habit from blocking out the world to exploring a destination.

What is the main metric to watch for OOH interactivity like this?

Dwell time, repeat interactions per person, and any measurable lift in intent or searches for the featured routes and cities.

How can another brand apply the pattern?

Identify a “portable interface” your audience already has, then design a physical touchpoint that turns exploration into the reward.

Plan: The Erasable Billboard for Girls’ Education

A large illustrated billboard appears in a busy city square. People donate, receive a simple eraser, and start rubbing away the artwork. As the top layer disappears, a second illustration is revealed underneath, shifting the story from girls working to girls going to school.

Plan has reported that tens of millions of girls worldwide are pushed into work instead of education, while in many less privileged countries boys are more likely to get access to schooling. To spark action, Plan and CLM BBDO created an erasable billboard with an illustration designed to be removed to reveal another illustration underneath. The billboard ran in central locations in Paris and Berlin. Passers-by were invited to donate in exchange for an eraser, then use it to change what the billboard showed.

Why the “erasable” mechanic is so strong

The mechanism does two jobs at once. It raises money, and it makes the issue understandable without explanation. The before-and-after is literal. Work disappears. School appears. The donor is not only informed. The donor performs the change. Cause-led campaigns should treat participation as the message, not a bonus layer.

Extractable takeaway: When the donor completes the transformation with their hands, the message becomes a memory and the donation feels consequential.

Definition-tightening: the eraser is not a gimmick. It is the interface, meaning the simple physical tool that gives the donor viewer control over the story. Because the act of erasing creates ownership, it makes someone more likely to donate, talk about it, and remember it.

In social-impact fundraising, participatory outdoor media can turn a small donation into a visible act of change that people feel in their hands.

The real question is whether your donation ask feels like participation or just passive sympathy.

What Plan is really buying

This is a public proof of participation. Instead of asking people to “care” in private, it makes caring visible, social, and shared. Every person who erases becomes a live endorsement that the issue matters enough to stop and act.

Steal this pattern: make giving tactile

Make the transformation physical. A tangible before-and-after beats a poster full of statistics.
Use the donation as the trigger. The action should only unlock after contribution, not before it.
Let participation create the content. The billboard changes because people change it.
Design for bystanders. Watching others erase is part of the persuasion.

A few fast answers before you act

What is the “Erasable Billboard” idea?

An illustrated billboard designed to be physically erased. Donors receive an eraser and reveal a second image underneath, shifting the story from girls working to girls going to school.

Why exchange a donation for an eraser?

Because it turns giving into an action. The eraser is a simple reward, but more importantly it is the tool that lets the donor create the transformation themselves.

What makes this more effective than a standard charity billboard?

It is participatory and observable. The public sees the billboard changing in real time, which builds social proof and makes the issue easier to grasp.

What is the main emotional lever?

Viewer control. The donor does not only learn about the problem. The donor performs a symbolic solution in front of others.

What is the biggest execution risk?

If the transformation is not instantly readable, people will not engage. The before-and-after needs to be obvious from a distance and satisfying up close.