Do you need a decent siren? We have it.

You are probably quite familiar with the Belgian company Sonitron and its top class products from our articles and from our offer in this segment.

As we know, piezo elements usually feature a significant maximum in a certain frequency range, which is successfully used in the buzzer and siren constructions. Thanks to this, piezo elements act like very efficient electroacoustic components suitable for acoustic signalisation.

Sonitron (Belgium), as a producer with many years of experience in the development and manufacture of piezo components, provides real acoustic pressure ("loudness") values for its products. When comparing various sirens and buzzers (as well as from various producers), it´s necessary to compare at which distance the given value was measured. Between two sirens with (at first sight) the same loudness – for example „105“ dB, there´s a big difference whether this value was measured at 30cm or at 1 meter (105db/ 30cm or 105db/1m).

Less known is the fact that piezo components have its (limited) lifetime. Under normal circumstances, if a given buzzer or siren is only used for occasional signalisation, this value is not essential. But in applications where frequent and long-term usage of piezo elements is expected, it is good to remember this parameter as well. Sonitron also provides the expected lifetime of its products, and their portfolio also includes types with extra-long lifespan.

When speaking about sirens, it´s the standard that they produce a “wobbling” sound with varying frequency. Specifically, Sonitron’s offer has types called „Sweep“ (2000-3500 Hz) as well as types working with more narrow frequency range – „Warbler“ (3000-3500 Hz).

For the special requirements, the SUT-2155 transducer type is available, with the same piezo element as the SAS-2155 but "without electronics". This enables to drive a siren by custom tones or by mixture of tones, or to change tone according to what we want to signalise.

In majority of cases, it´s better to drive elements by square-wave signal with more harmonic frequency content, producing more penetrating sound.

Many Sonitron components are available directly from our stock. Detailed description of particular components can be found in files attached to given components, as well as in the Sonitron catalouge.

In case of interest even in non-stock items, please contact us at sales@soselectronic.com.