Message Controller

When combined with a message controller voice sounders can transmit upto 4 messages over the same sounder circuit with no additional wiring.

Message Controller for Fire Alarm Systems 

Alert, Evacuate, Test & All Clear messages for each stage of alarm.

Message Controller for Gas Extinguishing Systems

Alert, Gas Release Imminent, Gas Released and Gas Hold messages for each stage of alarm.

Message controllers have two status indication LED’s; a ‘System Health’ indicator which is green in colour and a ‘fault indicator’ which is amber in colour.



  • Acts as a communication medium between the alarm panel and voice sounders
  • No additional wiring
  • Fully synchronised voice messages
  • System health indicators
  • Simple operation
  • Compatible with any of the Sonos Voice Sounders and
  • the Nexus red LED voice sounder beacon (PNV-0003)