Sensor Mounting Brackets: Bracket Type - Photoelectric Sensor Mounting; Shape/Configuration - 90-Degree; Bracket Mounting - 2 x Curved Slots; Sensor Mounting - Hole; Material - Stainless Steel; Dimensions - 2.75x2.25"(69.9x57.2mm); Extension - 2.25"(57.2mm); Additional Information - Bracket: Right Angle Mounting, Single Axis Mounting