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3 in 1 Smoke Heat Carbon Monoxide Alarm direct from Wanlin Fire Protection — 12-year factory experience, WL-SM100 fully certified CE/EN54/FCC/RoHS. Key specs: RF 433MHz mesh, one triggers all, 100m di

Source Integrated Smoke Heat Sensor directly from Wanlin Fire, a leading Chinese manufacturer of Photoelectric Smoke Heat Detector. Product highlights: Dual-sensor smoke+heat, 80% lower false alarm ra