Ключевые слова: alarm, alert, apartment, background, battery, building, burning, carbon, changing, control, danger, detector, device, electrician, electronic, emergency, equipment, fire, flame, heat, home, house, indoor, indoors, installing, interior, life, modern, object, prevention, protect, protection, repair, repairman, replace, rescue, risk, safety, security, sensor, setup, signal, simple, siren, smoke, sound, structure, test, warning, white,