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Conventional Sounder



The Base Sounders Indoor are used for signaling an

alarm directly at the fire location. They can be

employed either as base sounders or stand-alone


The device allows to select 32 types of alarm and

evacuation tones (including DIN tone 33404, part 3)

for different requirements.

You can adjust the sound pressure by five levels

according to the operational environment. Depending

on the tone type and volume set, the sound pressure

varies between 65 dB(A) and 92.1 dB(A).

Sounders of the same LSN loop and with the same

tone type provide immediate synchronization. The

device maintains LSN loop functions in the event of

wire interruption or short-circuit thanks to two

integrated isolators.


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