The fire alarm sounder is designed for speech notification (informing) people about the occurrence of fire, evacuation routes, modes of operation of the automatic fire protection system and other emergency situations, playback of speech and special signals in sounding and broadcasting systems. ODA is designed to work as part of the fire alarm system "RUBETEK", in conjunction with the fire alarm control and fire control device addressable analogue. ODA is designed to work as part of the notification and evacuation control systems in case of fire.
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