Ключевые слова: alarm, alarm system, alert, alert system, alertness, caution, crisis alert, danger, danger signal, distress signal, emergency, emergency beacon, emergency equipment, emergency light, emergency notification, emergency preparedness, emergency procedure, emergency response, emergency services, emergency signal, flashing light, glowing light, hazard, hazard light, illuminated, red alert, red light, red siren, red warning light, safety, safety signal, security, siren, warning, warning light,