18 mm High Speed Sensor, 18 mm Cylindrical, Polarized Retroreflective, Visible Red, Manually Adjustable, PNP, DC LO or DO Selectable, 2 m (6.5 ft) Cable, Plastic, 18mm Mount, 0.50 ms, 3 mm Minimum Sensing Distance, 3750 mm Operating Distance, 2800 mm Sensing Distance