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export senior home safety aging in place fire safety stov Remote Pressure Gauge battery-powe LTE Home Hub interlinked alarms RoHS compliant IoT home protection CE approved fire safety next generation smoke sensor technology variant 16 fire safety case st Kitchen Range Hood Auto Control kitchen gas valve controller AI kitchen safety gateway wireless kitchen sens Wireless Pressure Acquisition Terminal water gas alarm for elderly dementia safety device senior-friendly home automation Zigbee gateway kitchen fire prevention Shopping mall fire detector fire safety engineering certified fire alarm system deployment variant 12 Smart Stove Auto Shut-Off System EN50291 kitchen gas smart kitchen guardian kitchen CO detector for commercial buildings smoke detector test spray fire detector tester DTU level transmission NB-IoT level meter CE certified level sensor boiler level gauge solar powered level transmitter high temperature level gauge flood prevention level sensor cooling tower level monitor 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