Omnidirectional public-warning sirens from Edwards Signaling project a clear and powerful decibel level in all directions simultaneously. The omni-directional feature helps avoid the distoring "peaking-and-ebbing" effect associated with a rotating siren system. The series of sirens has continuous-duty motors. http://www.edwards-signals.com/ DIRECT Info #402
3 Bethesda Metro Center, Suite 1100
Bethesda, MD 20814
© 2003 - 2017. All Rights Reserved.