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smart fire detection system
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Smart Sensor China Manufacturer, 4G Wireless Heat Alarm, OEM···
Smart Sensor China Man···
2026-07-10
Smart Sensor China manufacturer. Fixed temperature and rate of rise heat detection with EN 54-5 UL 521 CE certification. 4G wireless, IoT smart monitoring, OEM/ODM, wholesale, global shipping to Poland. Contact: wanlinfirecontrol@163.com
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IoT sensor, 4G Wireless Heat Detector, WL-HD900, Wanlin Fire···
IoT sensor, 4G Wireles···
2026-07-10
IoT sensor direct from Wanlin Fire Protection — 12-year factory experience, WL-HD900 fully certified UL 521/EN 54-5/CE/FCC/RoHS/REACH. Key specs: 4G LTE Cat.1 + WiFi, Fixed Temperature + Rate-of-Rise Dual Sensor (57°C / 135°F), AC powered + 72h backup battery. MOQ 100 units, 25-30 working days, OEM/ODM custom branding available. Serving 60+ countries acro···