EATON Photoelectric Sensor, Forward Viewing Fully Potted High Performance, Series: Enhanced 50, Rectangle Shape, Polarized Retroreflective Sensing Method, 16 ft Sensing, Red Laser Sensing Beam, 2 to 18 ms Response, NPN/PNP Output, 10 to 40 V DC, 250 mA, 60 Hz Frequency, 4-Pin M12 Connection, LED Light Source, 4.01 in L x 1.91 in W x 1.81 in H Size, NEMA IP67/IP69K Enclosure, -13 to 131 deg F Operating, Environmental Conditions: 95% Non-Condensing Relative Humidity