Fire Alarm Test #50

Test of a 4100U system in an industrial facility. Original panel was a 4100 classic which was later upgraded following various building expansions. Most of the original areas are equipped with mechanical horns whereas in the plant and production floors you have sirens which are all coded by the panel and set to a low pitch tone. Each section of the plant is covered by its own transponder. A few of those can be seen in this vid.
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