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temperature sensor for waste storage
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NB-IoT temperature sensor with alarm, 4G Wireless Heat Detec···
NB-IoT temperature sen···
2026-07-10
NB-IoT temperature sensor with alarm 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. ···