As experience shows, the greatest number of fires occur at night when people are asleep and not able to detect fire and take measures to eliminate it. Therefore, the use of autonomous detectors, so-called sensors, is one of the effective ways of protection. Last year in 6 cases, the signal helped to save 18 lives. Including 9 children's rescue. The main causes of fires are old electrical network, childish prank or careless handling of fire while smoking.