Answers to some of the most commonly asked questions about warning systems and electronic sirens.
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Frequently Asked Questions (FAQ).
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Sirens are available to handle small 106dB (250W) to powerful 125dB (2250W) outputs.
Typical effective ranges for omnidirectional radiation are as follows (Example ranges calculated for 70dB at perimeter for attenuation 10dB per distance doubled):
|Siren Size||Effective range|
|Small (106dB/250 Watts)||350 -500m|
|Medium (115dB/750 Watts)||700 - 1000m|
|Large (121dB/1500Watts)||1100 - 1300m|
|Very Large (125dB/2250 Watts)||1500 - 1800m|
By using more than one siren and locating them to compensate for the effects listed in FAQ 4 above.