Ultrasonic Sensors (Reflex-Reflective, Block Style): Type - Photoelectric Convergent Sensor; Sensing Range - 0.4 in (10mm); Voltage - 10-30VDC; Output Mode - Light Operate; Output Configuration - NPN; Connection - Cable; Connection Size - 4.57m (15 ft); Construction - Miniature Rectangular; Sensing Position - Side; Response Time - 1ms; Beam Type - Visible Red; Material - ABS; Enclosure Rating NEMA - NEMA 3; Enclosure Rating IEC - IEC IP54; Temperature Rating - -20 to 55degC (-4 to 131degF); Manufacturer Series - VS1 Series