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Wi Fi smoke detector comparable to Nest

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Wanlin Fire Protection Brings 4G LTE + RF 433MHz Mesh 4G Interconnected Smoke Detector System (WL-SM 2026-07-07
drill free smoke detector direct from Wanlin Fire Protection — 12-year factory experience, WL-SM603 fully certified CE/EN14604/FCC/RoHS/REACH. Key specs: 4G LTE + RF 433MHz Mesh wireless, 10s alert push via APP/SMS/call, 3-year CR123A lithium battery, CE/EN14604/FCC certified. MOQ 200pcs, 20-25 working days, OEM/ODM custom branding available. Serving 60+ co···