real time fire monitoring

smoke detector EXW factory — Wanlin, 12-year Chinese smart fire detector manufacturer, WL-SM602 (LoRaWAN Smart Photoelectric Smoke Detector) certified UL/CE/EN54. Photoelectric + LoRaWAN 15km + Ultra-Low Power + 10-Year Battery. 10-year battery, 4G/NB-IoT/LoRaWAN, OEM/ODM from 500 units, factory direct pricing 50-70% below Western brands.

lecture hall smoke alarm direct from Wanlin Fire Protection — 12-year factory experience, WL-SFP600 smart fire detector certified CE/EN14604/EN54/UL217/UL268/FCC. Key specs: Fixed Temperature + Rate-of-Rise Heat Sensing + LoRaWAN Long Range + Ultra-Low Power + Dual Communication, LoRaWAN + IoT Gateway + Cloud Platform + Long Range (up to 15km) + 4G Cat.1 Bac···