Sensor Mounting Brackets: Bracket Type - Photoelectric Sensor Mounting; Shape/Configuration - Adjustable Slide; Bracket Mounting - Slotted Holes; Sensor Mounting - 0.31"(7.9mm) Hole; Material - Stainless Steel; Dimensions - 5.36x3.37"(136.2x85.7mm); Extension - 2.18"(55.6mm); Sensor Adjustment - 360deg Rotation; Use With - 28, 29 Series