Odelic Ceiling Recessed Type, Human Sensor Recessed Hole Diameter: 75φ Used item, used indoors for about 12 years. It was working without any problems until it was removed. It is probably equivalent to (OEM) Koizumi automatic lighting sensor switch AE41758E. Box, area mask, and instruction manual are not included. Only the main unit and cover will be included (see photos). There are small scratches, small chips made when removing the cover, and dirt due to static electricity, etc.