Ключевые слова: alarm, alarm signal, apartment, battery operation, beep, brand, ceiling, danger, emergency, esteem, fire, fire alarm, fire extinguisher, fire prevention, fire protection, hazardous point, hint fire protection regulation, home, house brand, insurance provision, life, prevention, protection, retouch, retrofit, room, room ceiling, safety, save firefighter, sensor, siren, smoke, smoke alarm device, smoke detectors, smoke ducts, smoke poisoning, smoker, smoking, technology, warning, warning signal,