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auditorium smoke alarm

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China smoke detector manufacturer, 4G Smart Carbon Monoxide Detector, WL-CO800, Wanlin, Johor Bahru, 2026-08-17
China smoke detector manufacturer — Wanlin, 12-year Chinese smart fire detector manufacturer, WL-CO800 (4G Smart Carbon Monoxide Detector) certified UL/CE/EN54. Electrochemical CO Sensor + 4G LTE + IoT Cloud + LCD Display + 10-Year Battery. 10-year battery, 4G/NB-IoT/LoRaWAN, OEM/ODM from 500 units, factory direct pricing 50-70% below Western brands.