The warning sirens employ the latest technology to ensure their operation and dependability.
Each has a battery back-up source of power for operation and is
activated by radio signals. A computer component at each location
immediately verifies that the siren has received the activation signal
and is operating properly.
The siren network is intended to
alert residents who are outside their residence or place of work. While
they may be audible indoors, noise levels inside a building greatly
affect a resident's ability to hear the outdoor warning devices.