Posted: Wed Aug 30, 2006 12:23 am
The HLS 573, a highly revised design of the 273, has a six stage air compressor. It is rated at 6,000PSI.
The Siren Board
Discussion of Outdoor Warning Systems
https://airraidsirens.net/forums/
What kind of siren is this
Page 2 of 2
Posted: Wed Aug 30, 2006 12:32 am
the HLS is awsome siren .
Posted: Wed Aug 30, 2006 11:06 pm
Loud as Hell though. 