How Loud Are Electric Sirens? What Is Their Maximum Warning Range?

Electric sirens feature higher and more stable loudness than traditional mechanical hand-crank sirens.The conventional loudness range of standard electric sirens is 110dB to 130dB,with high-power industrial and public warning models reaching up to 140dB.Thanks to electronic constant-power output,the volume remains stable during operation without fluctuation or attenuation.In open barrier-free areas,the effective audible warning distance of medium-power electric sirens can reach 1500 meters to 2000 meters,while high-power outdoor models can cover a wider range.In urban areas with dense buildings,forest areas and noisy environments,the sound will be partially blocked and attenuated,leading to a reduced effective warning distance.The continuous and stable high-decibel output enables electric sirens to meet large-area regional emergency evacuation and public safety warning needs.