A 130-decibel (dB) personal alarm is a widely used safety device designed to emit a piercing sound to attract attention and deter potential threats. But how far does the sound of such a powerful alarm travel?
At 130dB, the sound intensity is comparable to that of a jet engine at takeoff, making it one of the loudest levels tolerable for humans. In open environments with minimal obstacles, the sound can typically travel between 100 to 150 meters, depending on factors like air density and surrounding noise levels. This makes it highly effective for drawing attention in emergency situations, even from a considerable distance.
However, in urban areas or spaces with higher background noise, such as traffic-heavy streets or busy markets, the effective range may reduce to 50 to 100 meters. Despite this, the alarm remains loud enough to alert nearby people.
Personal alarms at 130dB are often recommended for individuals seeking reliable self-defense tools. They are particularly useful for lone walkers, runners, or travelers, providing an immediate way to call for help. Understanding the sound range of these devices can help users maximize their effectiveness in various situations.
Post time: Dec-11-2024
