At the first sign of smoke or fire, an alarm notification appears immediately through the app thanks to the push notification on the smartphone._x000D_Photoelectric detector, tested in accordance with EN 14604._x000D_With additional heat detection._x000D_Permeable alarm signal 85 dB._x000D_Alarm notification via push message._x000D_Low battery beep._x000D_Easy commissioning and control with the free brennenstuhl®Connect app._x000D_Batteries included._x000D_Mounting material included.