A better indoor climate strengthens both well-being and decision-making power
... Get the solution for your needs!
A poor indoor climate affects concentration, sick leave and job satisfaction – among children, teachers and employees alike. SKYEN gives you facts, overview and documentation – and makes it easy to act.
Why is it important?
- "53% of classrooms in Denmark exceed the CO₂ limit" – gymnasioskolen.dk
- Poor indoor climate is among the biggest causes of sick leave – ewii.dk
Documented benefits of better indoor climate:
A healthy indoor climate makes a noticeable difference – for children, schools and municipalities
Children spend up to 8 hours a day in classrooms and group rooms, where the air quickly becomes heavy and CO₂ levels rise. This causes fatigue, headaches and restlessness – and takes a toll on both well-being and learning.
With good air quality, stable temperature and low humidity, concentration increases, absenteeism decreases and disruptions are reduced. The result? Better learning, fewer complaints and documentable improvements – to the benefit of both students, teachers and the school's overall working environment.
A good indoor climate is not just a matter of comfort – it is an investment in health, learning and responsible operation.


What is THE CLOUD?
SKYEN is a Danish sensor that measures the six most important parameters for well-being in the indoor climate: CO₂, temperature, humidity, noise, light and air quality (TVOC) . It is plug-and-play and requires no IT complexity.
- 📊 Measure CO₂, temperature, humidity, noise, light and TVOC in real time
- ⚙️ Built-in SIM – no WiFi or network setup required
- 🔁 API integration for your dashboards, BMS or Smart City platform
- 📥 Quarterly reports for ESG, APV and school management reports
- 📱 Access data via QR code, dashboard or export
- 🇩🇰 Danish solution with EU hosting and high data security
SKYEN is already used in over 70 municipalities and 3,000 classrooms ⭐️⭐️⭐️⭐️⭐️
Face it. Most sensors require half a meteorologist's education to understand.
ÅBN's sensor and web app are built for everyone to join in. Based on the latest research, we have simplified your indoor climate to the Indoor Climate Label™.
All you have to do is scan the included QR code and see which areas you should improve.
Raise your parameters to an AC Indoor Climate Mark™ for the most optimal indoor climate.


Let us help you understand what's in the air.
What does it mean when the CO2 level shows 1,200 ppm and what significance does TVOC have for your health?
Get answers to all your questions and get recommendations to improve the indoor climate parameters you are having challenges with.
With the right behavior, there is a lot of money to save on energy and sick leave.
Gain insight into six different conditions:
SKYEN actively contributes to the Sustainable Development Goals – and helps you do the same.
With SKYEN you don't just get a gadget. We have collaborated with researchers and municipalities to create the best solution for you. That's why we guarantee:
- A reliable sensor with a 7-year precision guarantee
- A solution with proven effectiveness by Implement Consulting Group and Realdania
- Tailor-made solution for B2B and B2G.
- Battery-free solutions - because your sensor needs to work every day, year after year.
See exactly where and how the indoor climate affects your everyday life
A good indoor climate is more than comfort – it reduces sick leave, improves concentration and increases well-being. With the SKY , you easily get an overview and action where it matters most – in schools, at work or in meeting rooms.
👉 Order a free trial unit for 30 days
The SKY shows exactly where the challenges are – and how you can take action.
No obligations. No sales pressure. Just usable data.
📞 Call us at +45 40 13 07 05
✉️ Or write to hello@aabn.io and book a trial

Question?
Can the CLOUD be used for ESG and APV?
Yes. You get access to real-time data and reports that can be used directly in your APV and ESG documentation.
How does SKYEN help with student well-being?
A good indoor climate increases concentration and reduces fatigue and headaches. SKYEN makes it easy to act – and makes the indoor climate visible to both students and teachers.
What about integration into our systems?
The CLOUD comes with API access, so you can easily connect data to your own systems or dashboards. It is already used by several municipalities.
How does SKYEN differ from other solutions?
SKYEN combines CO₂ lamp, dashboard, notifications and data collection in one device – without the need for WiFi or technical setup. Customize thresholds and reporting yourself.