The ABUS smoke alarm RWM90 triggers an alarm as soon as smoke particles enter the measuring chamber. It covers up to 40 square meters within a room and warns loudly at 85 decibels of the dangerous and odorless smoke gases. This means you and your family/roommates can get to safety in time in the event of a fire. Thanks to the user-friendly, large test button, the smoke alarm can also be easily tested in high rooms, for example with a broom handle. If the lithium battery is running low, a beep sounds as a warning. With the optionally available ABUS Magnetolink® 8000 mounting set, there is no need to drill into the ceiling.