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fire alarm OEM home security elderly SOS emergency button home fire export smart home security flood water alarm door window sensor elderly care alarm gas valve shutoff global fire detection case fire safety case study global fire safety partner hospital ward fire detection deployment variant 34 Kitchen Vacancy Monitoring Alarm kitchen safety solution smart home kitchen safety kitchen gas valve controller kitchen fire prevention kitchen presence detector kitchen temperature monitor assisted living kitchen safety AI camera kitchen monitor home care kitchen monitor mmWave radar kitchen sensor Zigbee kitchen gateway OEM kitchen safety senior care technology elderly monitoring system cloud kitchen safety elderly kitchen safety EN50291 kitchen gas kitchen voice alarm CE ce global fire safety partner home fire safety bundle flood water source factory kitchen safety sen SOS Emergency Button interlinked alarms wireless alarm system RoHS compliant basement water sensor property safety 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