520Hz Sounder UL

Fire Alarm General Discussion
1

Hi, what companies are you buying 520Hz Sounder UL from? I need a project of mine according to the NFPA.

Thank you

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2

There are a few good NA makers that produce 520Hz low frequency sounders from, System Sensor makes the SpectrAlert Advance low frequency horn as well as the L-Series low frequency sounder. Eaton/Wheelock has the Eluxa (ELFHN/ELFHNC) devices as these are the newest ones available. The Potter LFH-24W or known as Gentex Commander Low Frequency horn strobe also meets this requirement as well.

For detector bases, the Simplex 4098-9773 TrueAlarm CO Sensor Base with 520 Hz Sounder is a mounting base for the Simplex TrueAlarm detector with it’s own sounder intended for the sleeping rooms in a building. And there is the Gamewell-FCI B200S-LF-IV Intelligent Addressable Sensor Sounder Base which also meets the 520Hz NFPA requirement on the base when the detector gets tripped.

3

Thank you Kai for your support.

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