An outdoor fire alarm speaker mounts to an exterior wall using a weatherproof backbox provided by the speaker manufacturer. A nineteen millimeter conduit enters through the bottom of the enclosure to supply wiring. The housing dimensions measure one hundred fifty-two point four millimeters in height and one hundred twenty-seven millimeters in width, with a twenty-five point four millimeter projection from the wall surface.
25.4mm 127mm WEATHERPROOF BACKBOX BY SPEAKER MANUFACTURER 152.4mm 19mm CONDUIT 127mm
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