Custer Electric

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Custer Electric Inc.
Headquarters Rushville, IN
Founded 1970
Products Outdoor lighting

Outdoor warning sirens

Custer Electric, Inc. is an Indiana-based electrical contractor that specializes in outdoor lighting systems and outdoor warning siren systems. While mainly a siren maintenance contractor, they also have produced a few small electronic sirens that are made to be as inexpensive as possible. None of these small sirens exist outside of east-central Indiana. The largest and most well-known system of these sirens is in Rushville, Indiana, which has around 5 of these sirens.

All of the installations have controllers consisting of an older, analog fire truck siren and a radio, with a set of speakers and a battery on top of the pole. The model of speakers used varies greatly between installations. The most common of these speaker types is the Electro-Voice/University Sound Cobreflex model, which is used on the installations in Rushville and Knightstown.

Many younger/inexperienced enthusiasts will find one of these speakers on an unrelated PA speaker installation and believe that it is a Custer Electric siren, when it is little more than a basic PA speaker. It is very unlikely that Custer would install any sirens very far from where they are headquartered.[1][2]

  1. List of Custer Electric siren units
    Location Amount Speaker Type/wattage Year Installed
    Rushville, IN 6 50W Cobreflex Array x4 ~90s
    Knightstown, IN 1 50W Cobreflex Array x2 ~90s
    Dunreith, IN 1 50w AtlasIED speaker Unknown
    Milroy, IN 1 50W, unknown manufacturer Mid 2000s
    Arlington, IN 1 50W unknown manufacturer ~2011
  2. https://www.airraidsirens.net/forums/viewtopic.php?t=22074