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Smoke Detector Wireless Interconnect — Wanlin, a Chinese fire detection and alarm system manufacturer and exporter based in Shenzhen, China, offers a full WF line (WF-100 to WF-900) covering EN 54-7 optical smoke detectors, EN 54-5 heat detectors, EN 50291-1 CO alarms, EN 54-11 manual call points, EN 54-3 sounder strobes with EN 54-23 VAD, EN 54-2 addressabl···

LoRa hotel fire alarm retrofit WL-LOR-SMK300 LoRaWAN Photoelectric Smoke Detector export OEM ODM wholesale