Ключевые слова: alarm, alert, ceiling, circle, cutout, danger, detector, devices, domestic life, electronic, emergency, fire, fire alarm, fire detector, fire protection, fire safety, hazard, home, house, household objects, isolated, isolated objects, loud, prevent, prevention, protect, protection, rescue, risk, safe, safety, secure, security, sensor, signal, single, siren, smoke, smoke alarm, smoke detector, sound, symbol, system, technology, test, wall, warn, warning sign, white,