Steinel motion sensors allow your lights to be triggered by the detection of infrared heat radiating from moving objects such as people and animals. When heat is detected it is converted into an electronic signal which activates connected devices. This highly advanced range of sensors includes a twilight threshold setting to ensure that any connected lights are not triggered during daylight hours. Products such as the IS 140-S Motion Detector have a 140° angle of coverage and a detection area which reaches up to 14 metres, plus a fully adjustable sensor which can be tilted or turned in the desired direction for accurate coverage. Not only does Steinel sensor technology provide luxury and convenience, but motion-activated lighting creates excellent visibility and increases the security of your home and its occupants.