Posted: Mon Jul 03, 2006 1:47 am
Either the Hornet or omni alert which btw used to be vortex o series for a short time
Discussion of Outdoor Warning Systems
https://www.airraidsirens.net/forums/
The Vortex and Hornet oscillate... No Whelen turns.audible_appliance wrote:i vote dor whatever the one that turns is called.