The Emergency Evacuation Sirens are a crucial part of the equipment used to deal with situations where lives depend on being able to quickly evacuate the building when there is an emergency. Evacuation drills conducted by firemen are usually good enough to ensure that people evacuate buildings and premises in time, but sometimes something comes up that makes this impossible. In those situations, the sirens ensure that everyone can evacuate safely from the building before the firemen can respond and provide assistance.
It is worth pointing out that the Emergency Evacuation Sirens can be used for many different purposes in all kinds of emergencies. They are not only used to notify the public and law enforcement agencies of an emergency but they can also be used to draw attention to rescue efforts or to warn people away from dangerous substances or flammable materials.