Industrial Fire Detection Systems for Retrofit Projects | Wanlin Fire · Practical Product and Application Information
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heat detector with dual communication, NB-IoT Heat Detector,···
heat detector with dua···
2026-07-10
heat detector with dual communication 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 available···