Photoelectric Sensors (Reflex-Reflective, Tubular Style): Type - Photoelectric Retroreflective Sensor; Sensing Range - 3.94"- 157.5" (0.1 - 4m); Voltage - 10-30VDC; Construction Style - Light/Dark Operate; Output Type - PNP; Connection Type - Cable; Connection Size - 6.5ft (2m); Construction - Tubular, Threaded; Diameter - 18mm; Sensing Position - End; Housing Material - Plastic or Nickel Plated Brass; Response Time - 1ms; Enclosure Rating IEC - IEC IP67; Beam Type - Visible Red; Temperature Rating - -25 to 55degC (-13 to 131degF)