

Top marks for the lighting conditions
The teacher comes into the classroom and switches on the light. At the end of the day, they leave the classroom and switch off the light. Or not.
This is still standard in many school buildings, consumes electricity unnecessarily and generates corresponding costs.
With the True Presence presence detector from STEINEL, you can save energy without having to sacrifice ideal lighting conditions. On the contrary: True Presence sensor technology, combined with semi-automatic constant light control, is ideal for teaching and learning. Although the light adapts to daylight, it can still be adjusted manually at any time. And when school is out at the end of the day and the classroom is empty, the light switches off automatically.
- CustomerCity of St. Gallen
- LocationHebel school building, St. Gallen-St. Georgen
- ApplicationClassrooms and adjoining rooms
- Our serviceConsultancy, solution, support
- ProductsTrue Presence Dali UP


Fascinated by the world of sensor technology
We have been optimising and refining our sensor concepts as well as our lighting solutions for as long as we have been around. Because we want to understand and implement the technology down to the last detail and be able to pass on our knowledge to users.
We would be happy to show you how True Presence opens up a new level of building automation — for your construction or renovation project too!


»Thanks to the sensors, we can adjust the light to suit the lessons. This means we have ideal lighting conditions in the classrooms at all times«Ursula Litscher, Headmistress, Hebel-Bach Primary School, St. Gallen
Save electricity
There is no need to switch off the lights manually. The sensor system takes over and guarantees that no unnecessary energy is consumed
Promoting individuality
Rooms can be illuminated differently with a lighting control system. The light simply adapts to the needs of the user.
Strengthen education
Light makes a decisive contribution to fatigue-free working. Give it to the pupils and teachers!
Build trust
We show you the possibilities and take care of planning, implementation and support. You can rely on us!
Intelligent inner life
All the functionality is built into the presence detector. There is no need for a building management system.
Flexible application
All functions can also be controlled via conventional wall switches and adapted to the needs of the classroom.
Wide-area coverage
One detector per classroom is enough. This is because True Presence detects presences and absences over an area of 64 m².
Shared knowledge
Just like at school: tasks are easier to solve together. We are there for you and work with you to make your project a success.
Rapid installation
Motion detection and control are integrated into the luminaires. This reduces the installation effort many times over. Commissioning, including addressing the luminaires, is carried out simply via app.
Simple wiring
This solution enables you to connect all luminaires per classroom to one DALI bus.
Cleverly connected
A coupler module is added to existing light switches. And the light control system is up and running
Completely maintenance-free
Once in operation, the sensor works as if by itself and is completely maintenance-free.
A straight 6 for this presence
The True Presence technology is based on the finest high-frequency measurements of the surroundings. This enables the presence detector to recognise the presence of a person, regardless of what they are doing. Micro-movements such as breathing or slight shoulder movements are sufficient to register presence.
True Presence provides digital information about presence or absence, eliminating unnecessary run-on times. This in turn has an extremely positive effect on electricity costs. Whereas with previous sensor models you also had to buy a remote control, here everything can be controlled via an app.

Now it’s time to work together.
I am Matthias Käser. Let’s talk in person.
I look forward to your call.
+41 44 521 81 26 matthias.kaeser@nevalux.swiss Contact us