different sirens

What Are The Different Sounds For Emergency Alarms?

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What Are The Different Sounds For Emergency Alarms? Bells, chirps, beeps, horns, whistles, chimes; there are many sounds for different uses. What are the different sounds for emergency alarms and what do they mean? There are two different tones used by Outdoor Warning Sirens: Attack: The signal for enemy attack is a rising and falling

What Are The Different Sounds For Emergency Alarms And What Do They Mean?

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What Are The Different Sounds For Emergency Alarms And What Do They Mean? There are two different tones used by Outdoor Warning Sirens: Attack: The signal for enemy attack is a rising and falling tone heard for 3 minutes. Civil Emergency: The signal for a civil emergency (such as a tornado) is a steady wail