Photoelectric Sensors (Background Rejection, Tubular Style): Type - Photoelectric Background Cutoff Sensor; Cutoff - 2.00 in (50mm) Cutoff; Voltage - 20-250VAC; Output Mode - Dark Operate; Connection Type - Cable; Connection Size - 9m (30 ft); Construction Style - Tubular, Threaded; Diameter - 18 mm; Sensing Position - End; Material - Thermoplastic; Response Time - 16ms; Beam Type - Infrared; Enclosure Rating NEMA - NEMA 6P; Enclosure Rating IEC - IEC IP69K; Temperature Rating - -40 to 70degC (-40 to 158degF)