four wire connection

smoke alarm sample order direct from Wanlin Fire Protection — 12-year factory experience, WL-SFP800 smart fire detector certified UL 217/UL 268/UL 2034/UL 864/CE/EN14604/EN54/FCC. Key specs: Photoelectric Smoke Sensing + RF Wireless Interconnect (433MHz/868MHz) + Mesh Network + Self-Healing Topology, RF Wireless Mesh + 4G LTE Cat.1 Gateway + Cloud Platform +···

attic smoke detector 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) +···

Screw Mount Installation China manufacturer. Smart fire safety with multi-sensor fusion, AI false alarm elimination, 4G+WiFi dual communication, IoT cloud platform. QCVN & EN54 certified. OEM/ODM, wholesale, global shipping to Australia. Contact: wanlinfirecontrol@163.com

two-wire connection direct from Wanlin Fire Protection — 12-year factory experience, WL-SFP600 smart fire detector certified CE/EN14604/EN54/UL217/UL268/FCC/QCVN. 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) + 4G Cat.1 Bac···