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traceable calibration report North America distributor wireless stove alarm nursing hom rehabilitation center fire safety case certified fire detector commercial fire hospital grade smoke test spray testifire low smoke capsule TF2 Oceania distributor Conventional 4 wire smoke heat detector industrial smoke detect Edwards SIGA-TEST alternative entry level smoke test equipment for Canada importer price smoke detector test kit heat detector tester portable smoke tester facility management fire detector tester Warehouse industrial smoke sensor PIR kitchen sensor mmWave stove detection stove fire safety case study fire s Application Scenarios solution TV stick Wanlin technology China export smart display system digital advertising streaming media Android platform OEM partnership ODM service global deployment certified device HDMI connectivity 4K playback commercial hardware media signage enterprise display content ecosystem smart factory display innovation IoT media video management signage 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