18 mm Cylindrical Sensor,18 mm Cylindrical,Transmitted Beam Receiver,Infrared,Manually Adjustable,NPN,DC Complementary LO/DO,2 m (6.5 ft) Cable,Plastic,18mm Mount,1.00 ms,3 mm Minimum Sensing Distance,16000 mm Operating Distance,16000 mm Sensing Distance 18 mm Cylindrical Sensor,18 mm Cylindrical,Transmitted Beam Receiver,Infrared,Manually Adjustable,NPN,DC Complementary LO/DO,2 m (6.5 ft) Cable,Plastic,18mm Mount,1.00 ms,3 mm Minimum Sensing Distance,16000 mm Operating Distance,16000 mm Sensing Distance