Ultrasonic Sensors (Reflex-Reflective, Block Style): Type - Photoelectric Retroreflective Sensor; Sensing Range - 21ft (6.5m); Voltage - 10-30VDC; Output Configuration - PNP; Connection - Connector, 4-pin Euro; Connection Size - M12x1; 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