Sirens

Sirens, sometimes known as a sounder, are used to attract interest and to present warning, particularly where an immediate response is needed. The sound has to be surely audible and identifiable to the human in the meant signalling area, and these are regularly used to complement a visible sign. Audible signalling is mainly useful in conditions in which sight maybe a problem, like in a bright sunlight or for the visually impaired. To alert a person, it is recommended that a sounder or siren reaches at between 5 and 15 dB(A) louder than the background noise of the given area. Frequency should also be between 300 and 3000 Hz.

Things to consider when selecting a siren:
• The sound pressure level achieved, quoted as decibel or dB(A).
• The frequency quoted in Hz.
• The distance it must be audible over.
• The background noise of the area it will be installed in.
• The sounds any machinery in the area makes to ensure the tone of the sounder or siren does not sound similar.
• The duration of each use - quick bursts or prolonged use.
To enable easy comparison, the dB(A) stated for a sounder or siren is usually measured at a distance of 1m. When the distance is doubled the dB(A) to drop by 6. This is why it is important to know not only the dB(A) the sounder or siren is capable of, but also the distance away from the intended signalling area it will be placed.
It is also worth noting that louder is always best. It is strongly recommended that the sounder or siren is sized to be within 5 to 15 dB(A) above the ambient noise level. Whilst the recommendation is that we aim for a level between 5 and 15 dB(A) above ambient, studies have found that it is possible to distinguish a sound that is up to 10 dB below ambient as long as there is sufficient frequency differential.
We offer a range of sirens which can be used in business departments such as Fire, Industrial, Emergency and Warning Systems.
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Täpsem kirjeldus Brand Stock Current Type Decibels at 1 Metre Supply Voltage Decibel Range Temperature Range Body Colour Series Special Features
Black Siren, 6 → 16 V dc, 105dB at 1 Metre Kingstate 187 DC 105dB 6 → 16 V dc Maximum of 105 dB -20 → +60 °C Black - -
Red/Black Siren, 230 V ac, 120dB at 1 Metre Klaxon 129 AC 120dB 230 V ac Maximum of 120 dB -30 to +45 °C Red/Black - -
Red Fire Siren, 10 → 28 V dc, 93dB at 1 Metre Fulleon 100 DC 93dB 10 → 28 V dc 75 → 100 dB -10 → +55 °C Red Squashni -
SuperM Motor Driven Siren, 127dB, 230Vac Klaxon 82 AC 127dB 230 V ac - -30 → +45 °C Yellow Super M -
Grey Siren, 24 V dc, 103dB at 1 Metre Klaxon 68 DC 103dB 24 V dc Maximum of 103 dB -30 → +55 °C Grey - -
White Fire Siren, 10 → 28 V dc, 93dB at 1 Metre Fulleon 46 DC 93dB 10 → 28 V dc 75 → 100 dB -10 → +55 °C White Squashni -
Grey Siren, 110 V ac, 230 V ac, 100dB at 1 Metre Klaxon 45 AC 100dB 110 V ac, 230 V ac Maximum of 100 dB -30 → +55 °C Grey - -
Grey/Black Siren, 230 V ac/dc, 127dB at 1 Metre Klaxon 43 AC, DC 127dB 230 V ac/dc Maximum of 127 dB -30 → +45 °C Grey/Black - -
Red/Black Siren, 110 V ac, 120dB at 1 Metre Klaxon 23 AC 120dB 110 V ac - -30 → +45 °C Red/Black Mono 72 Rugged Construction for Use in All Environments, Weatherproof to IP65
Grey Siren, 230 V ac/dc, 125dB at 1 Metre Klaxon 19 AC, DC 125dB 230 V ac/dc Maximum of 125 dB -30 → +45 °C Grey - -
SuperM Motor Driven Siren, 127dB, 110Vac Klaxon 8 AC 127dB 110 V ac - -30 → +45 °C Yellow Super M -
Signalling Column SIREN Element Siemens 4 DC - 24 V dc Maximum of 108 dB -20 → +50 °C Black SIRIUS Advanced Design, Improved Illumination, Thermoplast Enclosure
Grey Siren, 90 → 264 V ac, 131dB at 1 Metre
  • RS kood 772-0802
  • Bränd e2s
  • Tootja partnumber A131AC230G1
e2s 2 AC 131dB 90 → 264 V ac - -20 → +55 °C Grey - -
White Siren, 120 V ac, 106dB at 1 Metre Schneider Electric 1 AC 106dB 120 V ac Maximum of 106 dB -30 → +50 °C White - -
White Siren, 12 → 24 V dc, 105dB at 1 Metre Schneider Electric 0 DC 105dB 12 → 24 V dc Maximum of 105 dB -30 → +50 °C White Harmony XVS -
White Siren, 120 → 230 V ac, 105dB at 1 Metre Schneider Electric 0 AC 105dB 120 → 230 V ac Maximum of 105 dB -30 → +50 °C White - -
XVS 43 Tone Siren, 105dB, White, 120Vac Schneider Electric 0 AC 105dB 120 V ac Maximum of 105 dB -30 → +50 °C White - -
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