Ключевые слова: alarm, alert, carbon, ceiling, changing, check, checking, danger, detection, detector, device, electrician, electronic, emergency, equipment, fire, fixing, hand, handyman, holding, home, house, household, human, insert, inserting, installing, male, manual, monoxide, new, people, person, prevention, protection, remove, repair, repairman, replace, rescue, safety, security, sensor, smoke, system, technology, test, wall, warn, white,