Photoelectric Sensors (Background Rejection, Block Style): Type - Photoelectric Background Cutoff; Cutoff - 4 in (100mm) Cutoff; Voltage Range - 10-30VDC; Output Mode - Light/Dark Operate; Output Configuration - NPN; Connection Type - Connector, 4-pin Euro; Connection Size - M12x1; Construction Style - Compact, Threaded Nose; Sensing Position - Side; Optimum Range - 0-3.93" (0-100mm); Response Time - 1ms; Beam Type - Infrared; Material - Thermoplastic Polyester; Enclosure Rating NEMA - NEMA 6P; Enclosure Rating IEC - IEC IP69K; Temperature Rating - -40 to 70degC (-40 to 158degF)