EntityQ898090· pop 33· linked from 331 articlesfire alarm systemSign in to savea system, that works using multiple devices to warn of an emergency.ConnectionsUL LLCEntitycarbon monoxide detectorEntityductEntityManual fire alarm activationEntityfire alarm call boxEntityAustraliaCountryOceaniaEntityfireEntityemailEntityInternational Standard Book NumberEntitydoorEntitypressureEntitycameraEntitybellEntitysmokeEntityelevatorEntityexplosive chemicalsEntityInternational Organization for StandardizationEntitycarbon monoxideEntitydigital object identifierEntityCategoriesAmerican inventionsCommons link from WikidataFire detection and alarm