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kitchen CO detector smart kitchen g CE certified fire alarm Accessories solution advertising player quick start guide printed fire safety exporter fire detection R&D innovation case study variant 23 CE EN 14604 certified fire alarm tester fire alarm maintenance bedside emergency button assisted living facility supplier home safety for aging parents home health care distributor gas alarm for elderly UL listed smoke alarm wearable panic button natural gas leak detector elderly care wholesale senior wellness technology telecare service Ceiling Mounted Motion Sensor smart gateway hub Application Scenarios solution digital signage EN54 certified ISO9001 fire safety manufacturing case variant 19 China fir Pregnancy Kitchen Safety Alarm AI camera kitchen monitor 4G kitchen alarm wireless kitchen sensor kitchen safety sensor CE certified fire a kitchen fire prevention stove gas valve shut-off stove safety OEM mmWave stove detection stov gas valve shu Technology & Hardware solution advertising 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