convention center smoke alarm

convention center smoke alarm — Wanlin, 12-year Chinese smart fire detector manufacturer, WL-SM604 (Wireless Interconnected RF Smoke Detector) certified UL/CE/EN54. Photoelectric + RF Mesh + 24-Detector Interconnect + Self-Healing + 10-Year Battery. 10-year battery, 4G/NB-IoT/LoRaWAN, OEM/ODM from 500 units, factory direct pricing 50-70% below Western brand···

fire alarm controller direct from Wanlin Fire Protection — 12-year factory experience, WL-SFP600 smart fire detector certified UL 217/UL 268/UL 2034/UL 864/CE/EN14604/EN54/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)···