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detection deployment variant 11 building fire protec multi-function smoke detector test gun detector calibration fire detection case corporate office fire alarm system case variant 13 sma global fire safety partner chemical plant fire detection system variant 7 comme Advertising Media Player solution advertising media player RS232 control smart fire platform hospital fire safety solution case study variant 39 industrial fir China supplier fire alarm tester export fire equipment OEM home securi commercial fire safety fire safety equipment contract ma fire safety digital platform partner mmWave stove detection gas stove timer alarm source factory stove alarm assisted living fire safety unattended cooking alarm stove auto shut-off senior home safety stove gas valve shut-off stove safety export China kitchen safety export stove left on alarm IoT stove monitor home fire safety kit stove safety OEM stove app alert PIR kitchen sensor CE certified stove alarm wireless stove alarm stove alarm 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