campus fire automatic early warning direct from Wanlin — 12-year factory experience, WL-SFP200 smart fire detector certified UL 217/UL 268/UL 2034/UL 864/CE/EN14604/EN54/FCC. Key specs: Photoelectric Smoke Sensor + Electrochemical CO Sensor + NB-IoT + Multi-Sensor Fusion, NB-IoT + IoT Cloud Platform + Dual Alarm (Smoke + CO) + SMS/Push/Email. Smart fire com···
Heat Alarm System China manufacturer. Fixed temperature and rate of rise heat detection with EN 54-5 UL 521 CE certification. 4G wireless, IoT smart monitoring, OEM/ODM, wholesale, global shipping to USA. Contact: wanlinfirecontrol@163.com