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An electric siren is a high-decibel signaling device that produces a loud, continuous, or oscillating sound through the rapid rotation of an electric motor and a sound-producing rotor. It converts electrical energy into acoustic energy, often amplified for maximum audibility. Electric sirens are commonly used for emergency alerts, alarms, and warnings, including police, fire, ambulance, and industrial applications. They are valued for their reliability, ability to emit distinct and penetrating tones, and adaptability to various environments.