bed and breakfast smoke alarm

wireless smoke detector LoRaWAN WL-LOR-HEAT500 LoRaWAN Heat Detector A1R Rate-of-Rise export OEM ODM wholesale

explosion-proof smoke detector 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 Pla···