In the period from 10:40 to 10:43, the check was carried out by launching technical means of notification - these are electromechanical sirens S-40, which sound the signal «ВНИМАНИЕ ВСЕМ!» and speech siren installations RSU-300 and RSU-600, which are able to inform and notify the population by voice messages.
This set of measures allows you to objectively check the operability of terminal warning devices, as well as assess the readiness of the personnel on duty authorized to launch public notification systems. This must be done in order to be sure that all available systems are operational in order to deliver signals and information to the public in a timely manner in case of emergency situations.
A large-scale inspection of public notification systems at the regional and municipal levels took place in all regions of Russia. The warning system is designed to deliver a signal to the public in a timely manner in case of a threat or emergency situations of a natural and man-made nature.