Allertor, low-tone Tbolt, and 2001 in Minneapolis

[ACAP10]

http://www.youtube.com/watch?v=GjrIYgT7dcI

They sound eerie together! I don't remember this one being posted...sorry if it has been!

[ver tum]

Sounds like there could be 3 separate siren systems sounding in that vid. One system has the Allertor, another has the TBolt, and another has the 2001 and the other sirens, which are possibly either T-121's or Eclipses since they don't sound like they're rotating. Notice how each system shuts down at different times. They could also have a system where the sirens sound in zones.

[Thunderboltlover]

Minneapolis has several different kinds of older sirens, but as far as I know all newer sirens are 2001's.

They don't really seem to be replacing many of the older sirens, just more on a "as they break down" basis. They bought several 2001's for what seems like a "fill in the coverage gaps" basis as well as to replace some older sirens that were likely wearing out.