self diagnostic smoke detector

Esser replacement smoke alarm direct from Wanlin Fire Protection — 12-year factory experience, WL-SM601 4G standalone smoke detector certified CCCF/GB 20517-2006/CE/UL 217/EN 14604. Key specs: Dual Light Path Photoelectric Sensing + NB-IoT Cellular Communication + Maze Sensor Structure, NB-IoT + Cloud Platform + SMS/Push/Email Alerts + Low-Power Wide Area. ···

Self-Test Smoke Alarm China manufacturer. CE EN14604 UL RoHS FCC certified. 4G wireless smoke detection solution for Southeast Asia market. OEM/ODM, wholesale, global shipping. Contact: wanlinfirecontrol@163.com

wireless battery smoke detector direct from Wanlin Fire Protection — 12-year factory experience, WL-SM604 fully certified CE/EN14604/FCC/RoHS/REACH. Key specs: LoRaWAN (CN470/EU868/US915/AS923) wireless, 10s alert push via APP/SMS/call, 5-year lithium battery, CE/EN14604/FCC certified. MOQ 200pcs, 20-25 working days, OEM/ODM custom branding available. Servi···