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Wanlin NB-IoT Smart Smoke Detector Export Solution: Smoke an···
Wanlin NB-IoT Smart Sm···
2026-05-31
Smoke and CO Composite Detector direct from Wanlin Fire Protection — 12-year factory experience, WL-SM500 fully certified CE/EN54/FCC/RoHS. Key specs: NB-IoT ultra-low-power, 8-year battery life, dail