How do our motion detectors work?

The light and motion sensor used in PHOTASGARD® brightness sensors has been specially adapted to eye sensitivity. It is most sensitive in the range of 400 nm to 700 nm. Therefore, with its special filter, the sensor is ideally suited for use in measuring the brightness of daylight and ⁄ or measuring artificial light of high colour temperature (similar to sunlight).
Nothing less than a high-end infra-red sensor with extended beam angle is used In all KINASGARD® motion sensors or presence detectors. The patented lens system with 20 individual lenses results in only very small dark areas that are just a few centimetres wide even at a distance of 10 m, thereby reliably detecting small movements. The sensor detects changes in infra-red radiation, i.e. thermal radiation resulting from movements of people or objects. Such movements generate a temporary change of the temperature gradient in the field. Due to the constant presence of body radiation (heat), this solution is ideally suitable for detecting people. The temperature difference between sensor and object must be > 5 K