Photoelectric Sensors (Background Rejection, Block Style): Type - Photoelectric Diffuse Reflective; Sensing Range - 18" (450mm); Voltage Range - 24-250VAC, 12-250VDC; Output Mode - Light/Dark Operate; Output Configuration - SPST Solid State Switch; Connection Type - Connector, 4-pin Mini; Connection Size - 7/8-16UN; Construction Style - Rectangular, Threaded Base; Sensing Position - Side; Response Time - 2ms; Beam Type - Infrared; Material - Thermoplastic; Enclosure Rating NEMA - NEMA 6P; Enclosure Rating IEC - IEC IP67; Temperature Rating - -25 to 55degC (-13 to 131degF)