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24 7 temperature monitoring
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GSM Heat Detector China Manufacturer, 4G Wireless Heat Alarm···
GSM Heat Detector Chin···
2026-07-10
GSM Heat Detector 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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heat detector with remote configuration, NB-IoT Heat Detecto···
heat detector with rem···
2026-07-10
heat detector with remote configuration direct from Wanlin Fire Protection — 12-year factory experience, WL-HD903 fully certified UL 521/EN 54-5/CE/FCC/RoHS/REACH. Key specs: NB-IoT (LTE Cat-NB1), Fixed Temperature Sensor + NB-IoT Low-Power Module, 5-year replaceable battery (2x AA lithium). MOQ 100 units, 25-30 working days, OEM/ODM custom branding availab···