Sounder bases

Designed to meet NFPA low-frequency signaling requirements for unattended sleeping areas, the Autocall TrueAlarm 520Hz Sounder Base is a perfect solution for hospitality, education, and multi-occupancy residential applications. It offers an efficient, cost effective way to upgrade existing Autocall systems to NFPA compliance with minimal disruption.

Highlights:

  • Generates 520Hz and broadband tones.
  • Modern, shallow, reduced diameter asymmetric design blends with the environment.
  • Available both with and without integrated CO sensor.
  • Similar installation, configuration, and programming as other Autocall units
  • Ideal for retrofits: Existing Autocall sensor bases can be replaced with the 520Hz Sounder Base and both the existing sensors and wiring can be re-used, minimizing cost and disruption.
  • Compatible with Autocall 4100ES, 4010ES, and 4007ES control panels.

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