city hall smoke detector

Wanlin Fire - China source manufacturer for server room smoke detector. Featured model WL-TH-IOT (Smart Wireless IoT Detector): Photoelectric smart smoke detector with NB-IoT module; EN54-7 Class A2 chamber, hourly cloud self-test; Local 85 dB sounder + cloud push / SMS / voice call; -10 to +55 deg C, 0-95% RH (tropical humidity rated). Full lineup: smoke an···

4G smoke alarm direct from Wanlin Fire Protection — 12-year factory experience, WL-SM604 4G standalone smoke detector certified CCCF/GB 20517-2006/CE/UL 217/EN 14604. Key specs: Dual Light Path Photoelectric + AI False Alarm Algorithm + 4G Cat.1 + Edge Computing, 4G LTE Cat.1 + AI Cloud Platform + Smart Push + Predictive Maintenance + OTA Update. Dual light···