Photoelectric Sensors (Background Rejection, Tubular Style): Type - Inductive Proximity, General Purpose Sensor; Sensing Range - 16 mm; Voltage - 10-30V DC; Wires - Voltage Type - 2-Wire DC; Shielding - Unshielded; Output Mode - N.O.; Connection Type - Cable; Connection Size - 2m(6.5 ft); Construction Style - Tubular, Threaded; Diameter - 18 mm Dia.; Material - Nickel Plated Brass; Enclosure Rating IEC - IEC IP67; Switching Frequency - 400 Hz; Temperature Rating - -40 deg C(-40 deg F) to F470 deg C(158 deg F); Material - Face - Nonmetallic