self test function

independent living community smoke detector direct from Wanlin Fire Protection — 12-year factory experience, WL-SFP500 smart fire detector certified UL 217/UL 268/UL 2034/UL 864/CE/EN14604/EN54/FCC. Key specs: Multi-Sensor Fusion (Smoke + Heat + CO) + AI Machine Learning Algorithm + 4G LTE + WiFi Dual Communication + Edge Computing, 4G LTE Cat.1 + WiFi + AI···

Dual Power Supply China manufacturer. Smart fire safety with multi-sensor fusion, AI false alarm elimination, 4G+WiFi dual communication, IoT cloud platform. UL217 & NFPA72 certified. OEM/ODM, wholesale, global shipping to Brazil. Contact: wanlinfirecontrol@163.com