Are there different technologies used for presence detectors?

Carolina Bachenheimer-Schaefer
14.03.2017 14:32

Yes, there are different technologies. There is, on the one hand, the very common PIR (Passive Infrared) technology, HF (High Frequency) technology and ultrasound technology. The Passive Infrared detects a movement by detecting a change in the form of heat. In HF or double radar technology, changes are detected when the distance to the sensor changes. Ultrasonic detectors react to a change (target-actual comparison) of the ultrasonic waves emitted by the detector and received as reflection in the monitoring range.

Tags: KNX, Light Control, Motion Detection
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