4G smoke alarm -- Wanlin Fire Protection, 12-year Chinese smart fire protection product manufacturer, WL-SFP600 (LoRaWAN Wireless Heat Detector) certified EN54/EN14604/EN50291/CE. LoRaWAN 15km Range + Heat Sensor (Class A1/A2/B) + 10-Year Battery + EN54-5 + Long Range W. MOQ from 100 units, OEM/ODM from 500 units, 15-20 day delivery, 60+ countries.
GB4715 smoke detector direct from Wanlin Fire Protection — 12-year factory experience, WL-SM600 4G standalone smoke detector certified CCCF/GB 20517-2006/CE/UL 217/EN 14604. Key specs: Dual Light Path Photoelectric Sensing + 4G Cat.1 Cellular Communication + Maze Sensor Structure, 4G LTE Cat.1 + Cloud Platform + SMS/Push/Email Alerts + Remote Monitoring. Du···