Ultrasonic Sensors (Reflex-Reflective, Block Style): Type - Photoelectric Diffuse Reflective Sensor; Sensing Range - 59 in (1500mm); Voltage - 10-30VDC; Output Configuration - NPN; Connection - Cable; Connection Size - 2m (6.5 ft); Construction - Compact, Rectangular; Sensing Position - Side; Response Time - 800s; Beam Type - Infrared; Material - ABS; Enclosure Rating NEMA - NEMA 6; Enclosure Rating IEC - IEC IP67; Temperature Rating - -20 to 60degC (-4 to 140degF); Manufacturer Series - World-Beam Q20 Series