Tubular Style Light Source: Sensor Type - Photoelectric Thru-Beam Source; Sensing Range - metric - 18m; Sensing Range - standard - 59ft; Voltage - 10-30VDC; Connection Type - Connector, 4-pin; Connection Size - M12x1; Diameter - 18 mm; Construction Style - Tubular w/Flat Sides, Threaded; Sensing Position - End; Material - PBT; Beam Type - Infrared; Enclosure Rating IEC - IEC IP67; Temperature Rating - -25 to 55degC -10 to 131degF; Manufacturer Series - S51 Series