What Are the Common Sound Tones of Electric Sirens?

Unlike single-tone mechanical sirens,electric sirens support multiple adjustable sound modes to meet different emergency warning standards.The most common modes include wail tone,yelp tone,steady high-pitched tone and alternating hi-lo tone.The wail tone features slow and continuous frequency sweeping from low to high,with strong penetration,suitable for long-distance public evacuation and regional disaster warning.The yelp tone adopts fast frequency switching with sharp and urgent sound,mostly used for emergency vehicle warning and on-site accident alert.The steady tone outputs fixed high-frequency sound continuously,applicable for fixed-point safety reminder and equipment failure alarm.Many modern electric sirens also support custom tone adjustment and voice broadcast functions,which can pre-store early warning voice messages to realize sound and voice dual warning,improving the accuracy and effectiveness of emergency reminders.