hardwarestorechainbu

Refrigerator Door Open Alert direct from Wanlin Fire Protection — 12-year factory experience, Carbon Monoxide Alarm for Seniors (WL-CO800) certified CE/EN50291/FCC/UL2034/RoHS. Key specs: NB-IoT/WiFi wireless, 85dB siren + voice alert + APP push, 10-year sealed lithium. MOQ 200pcs, OEM/ODM available.