red fire alarm bell emergency safety system mounted wall with wires |
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| navigate by keyword : red alarm bell fire emergency safety system wall wires conduit security warning alert protection equipment industrial building public danger signal sound device technology modern prevention control facility infrastructure interior indoor object closeup detail mounted attached round white grey light crucial reliable essential audible electric automatic communication secure installation maintenance |
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| Close up of a red fire alarm bell mounted on a light-colored wall with visible wiring, signifying an emergency safety system |
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