The optical smoke detector Abus RWM250 triggers an alarm as soon as smoke particles enter the measurement chamber. It covers rooms with an area of up to 60 m² at the appropriate installation height and warns loudly at 88 dB of dangerous smoke development, as well as, thanks to the integrated temperature sensor, when there is a noticeably rapid increase in room temperature. This allows you and your family or housemates to get to safety in case of a fire. Thanks to the magnetic gel adhesive pad technology, the smoke detector can be installed in no time and requires no drilling or screws for fixation. The high-quality, permanently installed lithium battery enables a long battery life of the RWM250 of up to twelve years. When the lithium battery's power is low, a beep sounds as a warning.