Ultrasonic Sensors (Reflex-Reflective, Block Style): Type - Photoelectric Retroreflective Polarized Sensor; Sensing Range - 12ft (3.5m); Voltage - 10-30Vdc; Output Configuration - PNP; Connection - Cable; Connection Size - 2m (6.5 ft); Construction - Compact, Threaded Nose 18mm; Sensing Position - Side; Response Time - 600s; Beam Type - Visible Red; Material - ABS; Enclosure Rating NEMA - NEMA 6; Enclosure Rating IEC - IEC IP67; Temperature Rating - -20 to 70degC (-4 to 158degF); Manufacturer Series - World-Beam QS18 Series