The HPD2 optical presence detector can not only clearly detect the presence of sitting or standing persons, it can also count them in defined zones. With this unique technology, both the presence and the exact number of people in a room can be detected precisely and in real time.

The core of the person sensor is a high-precision optical system combined with a neural AI (artificial intelligence) algorithm. An integrated image analysis provides the corresponding data in real time. The image processing carried out directly in the sensor provides information on the number of persons and their position - real images of persons are not output. 

The HPD2 also has integrated temperature and humidity sensors. Together with the information about the number of persons present, this enables a more demand-oriented control of light, heating and air conditioning.

True Presence® from STEINEL offers a new dimension in reliability for accurate presence detection. With this unique sensor technology, data can be obtained in the quality that is crucial for effective and efficient building control.

True Presence® is based on high-frequency detection of the environment. A new sensor technology with extremely high resolution is used. This makes it possible to reliably detect the presence of a person in a room, regardless of what they are doing or whether they are moving. True Presence® indicates the presence of a person when the micro-movements of vital functions are detected in the form of three-dimensional breathing patterns.

In combination with unique sensor software, the presence of a person is thus detected 100 percent. True Presence® can detect temperature, humidity, CO2, volatile organic compounds (VOC) and brightness in one product, making the building "truly intelligent".