Is this siren an early Allertor versionor an unknown?
http://www.jmarcoz.com/sirens/culvercity2_ca.jpg
What is this siren. It looks like an omni-directional Thunderbolt
http://www.jmarcoz.com/sirens/sanclemente_ca.jpg
The first one looks like a gas powered mobile directo.Hope Creek ACA System wrote:Is this siren an early Allertor versionor an unknown?
http://www.jmarcoz.com/sirens/culvercity2_ca.jpg
What is this siren. It looks like an omni-directional Thunderbolt
http://www.jmarcoz.com/sirens/sanclemente_ca.jpg
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