wifi smoke detector

Export-Ready 3 in 1 Smoke Heat Carbon Monoxide Alarm: Wanlin··· Export-Ready 3 in 1 Sm··· 2026-05-31
3 in 1 Smoke Heat Carbon Monoxide Alarm 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 li