Lemont, IL. ACA P-50

Located around three blocks West form Old Quarry Middle School. The siren went off for around three minutes at 10:00 AM.

[@jjjjentges]

Very Good recording! Keep it up!

[@IllaFLASHNetwork]

I heard a click from the power box during the cycle, almost as if the relay tripped. But is is very healthy indeed.

[@kdksiren]

Wonder why it skipped a beat at .45? Nice video! Sounds mighty healthy.

[@legomaniac989]

Yep, I hear that every first Tuesday (of the month)

[@ChicagoSirens]

This siren has since been replaced with a 2001-130.

[@midwestsirens]

+Knife Party shit

[@midwestsirensandtrains]

Such a down grade from this guy.

[@midwestsirens]

ikr

[@clarencetrotter8085]

ChicagoSirens i like that siren no matter what. That particular sound, 3 or 4 different low to high pitch sounds get everybody attention.

[@clarencetrotter8085]

ChicagoSirens. i like this siren.

[@sirenlover100]

Did you know that at 100 feet this siren is 132 decibels (db)?

[@IllaFLASHNetwork]

sirenlover100 Yah, i was a block away and i had to wear industrial ear protection

[@Thunderbolt1000Tfan]

Actually, these are 135 dB at 100'. They are also the largest siren in the world.

[@sirenlover100]

Thunderbolt1000Tfan I was off by three, oh well

[@AmericanSirenProductions]

+tornadosirenlover100 your thinking of the new 135 ACDC model which is rated for 132

[@friedmanirit]

Three is not as little as you think..

[@legomaniac989]

Wait WHAT! When? I Probably wasn't born yet