EATON Cutler-Hammer Series Proximity Sensor, 2-Wire Straight Unshielded, Series: E57 Premium+, Inductive Sensing Method, 4 mm Sensing Distance, End Sensing Position, <3 % Accuracy, 1NO Contact Configuration, 20 to 250 VAC, 250 mA, 3-Pin Dual Key Micro AC Connection, 3.06 x 0.47 x 0.47 in Size, NEMA 4/4X/6/6P/12/13/IP67/IP69K Enclosure, -13 to 158 deg F, Non-Flush Mounting, 303 Stainless Steel, Environmental Conditions: 10 to 55 Hz, 1 mm Amplitude Vibration