The Smoke Detector 2 senses smoke. Gases, heat or flames may not be detected by the Smoke Detector 2. During the smoke emission a loud acoustic signal will immediately be initiated, at the same time a red signal light diode will flash. The smoke alarm is intended to be used in private houses. The integration of the Smart-Home house control system allows provoking a certain alarm scenario, for example switching on all installed lights so that you can leave your house quick and safely.