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Fire Alarm Combination Wireless Interconnected Co Carbon Monoxide & Smoke Detector for Home/Office Security with 10-Years Sensor Life

Wireless Home Alarm System Sensor CE En14604 Approved Mini Size Long Life Smoke Alarm

Magnetic Fail Safe DC9V Battery Nc Type Wireless Door Sensor (SW-90NC) for Door Open and Close Factory Price

Tuya WiFi Smart Battery Operated APP Remote Control Wireless Human Body Movement PIR Motion Sensor Work with Tuyasmart