low battery reminder

fault self-diagnosis direct from Wanlin Fire Protection — 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 Cellular Communication + Multi-Sensor Fusion, NB-IoT + IoT Cloud Platform + Dual Alarm (Smoke + CO) + SMS/Pu···

Test History Record Storage China manufacturer. Fire testing smoke gun for smoke and heat detector functional testing. CE, UL, EN54, NFPA72 compliant. Compatible with 30+ detector brands. OEM/ODM, wholesale, global shipping to Kuwait. Contact: wanlinfirecontrol@163.com