smoke sensor the ceiling office room fire alarm element workspace security |
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| navigate by keyword : abstract alarm assistance background bright burning call ceiling coating combustion control danger death design element emergency equipment fighting fire forecast heat immediately light measures message metal office pattern preventive product protection reaction reflow safety security sensitivity sensor smoke space substances surface survival suspended system technology texture threat toxic warning water wet white workspace |
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| Smoke sensor on the ceiling in the office room. Fire alarm element. Workspace security |
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