Photo 1 of Blue by ADT Door and Window Sensor - Wireless with A Customizable Open Chime - Compatible with Most Doors and Windows only Compatible with Blue by ADT Systems

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Photo 1 of Blue by ADT Door and Window Sensor - Wireless with A Customizable Open Chime - Compatible with Most Doors and Windows only Compatible with Blue by ADT Systems
Photo 2 of Blue by ADT Door and Window Sensor - Wireless with A Customizable Open Chime - Compatible with Most Doors and Windows only Compatible with Blue by ADT Systems