Simplex 2001 Fire Alarm Test

Test of a Simplex 2001 fire alarm system at a school. The filming is crappy because I was holding a decibel meter and the camera. You will hear several 12 volt Simplex 4050 horns. Signal coding is March time rate (120 beats per minute); this coding(subconsciously) helps control crowd movement using the pattern to set a pace during an evacuation.

ORIGINAL VIDEO: https://www.youtube.com/watch?v=lw72bgk-WW4

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