This has to be one of the wildest fire alarm systems I've ever seen. Also do they use a Simplex 4100 series panel for the voice evacuation or is it copied to another system?
@Weihuanwu
9 ай бұрын
they just use the simplex whoop sound and added their own message shown here kzitem.info/news/bejne/165o04yrm4R-m34 powered by a battery theres like a speaker inside of them
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