EATON Proximity Sensor, 4-Wire Limit Switch Style Modular Standard Unshielded, Series: E51, Inductive Sensing Method, 24 mm Sensing Distance, Side Sensing Position, <0.3 % Accuracy, 10 Output, 1NO-1NC Contact Configuration, 10 to 30 V DC, 600 mA, Screw Terminal Connection, 50 Hz Switching Speed, 1.54 in L x 1.78 in W x 4.53 in H Size, NEMA 3/3S/4/4X/6/6P/12/13/IP67 Enclosure, -13 to 158 deg F, Die Cast Zinc, Environmental Conditions: 95% Non-Condensing Relative Humidity