The ultrasonic waves (40 kHz) are actively emitted from the sensor and spread throughout the space it covers. They permeate into every last corner, enveloping objects that are present in the room. The sensor identifies movement in the room even if there is no visual contact between sensor and person. The signal is evaluated on the basis of the Doppler principle. It is this that makes ultrasonic sensors ideal for open-plan offices and rooms with stud walls. Ultrasonic waves do not penetrate thin walls and are highly sensitive. And therefore particularly recommended for rooms in which sedentary activities are performed.
This is how it works
Detection in every last corner.
DualTech presence detector
The best of both worlds. Combined in one detector.
Offices, conference rooms and classrooms come with their own particular spatial situations that do not exactly make it easy to provide efficient lighting control. This is where our claim of having the perfect sensor for any room situation is put to the acid test. But with our experience and expertise in different sensor technologies, we have managed to master this challenge. For the first time, STEINEL's engineers have combined the benefits of ultrasonic sensors with tried and proven infrared technology in one presence detector. This way, the DualTech can also detect movements without any visual contact with the sensor. And does so with maximum reliability.
Properties
The US sensor actively emits ultrasonic waves and identifies movements in its detection zone using the Doppler principle. It reliably responds to the slightest movement.
Walking direction does not matter to the US sensor. Regardless of whether you approach the sensor from the front or the side – detection quality and reach are always of the same high quality.
The ultrasonic waves emitted by the US sensor can envelop objects completely. This makes it possible to cover the entire room – regardless of partition walls or other obstacles.
DualTech pools the benefits of two different sensor technologies in one product. The intelligent combination of passive infrared (PIR) and ultrasonic sensors provides significantly more detection capabilities.
The US technology operates in a temperature range from - 30 °C to + 50 °C without impact on the function.