Banner Engineering Ez-Beam® Photoelectric Sensor, Self-Contained, Series: S18, Barrel Shape, Retro Reflective Sensing Method, 2 m Sensing, Red Laser Sensing Beam, 3 ms Response, PNP Output, 10 to 30 V DC, 30 mA, Quick-Disconnect Connection, LED Light Source, 10 to 60 Hz Vibration, 18 mm Dia x 78 mm L Size, NEMA 6P/IP69K Enclosure, -40 to 70 deg C Operating, Environmental Conditions: 90% at 50 deg C