Proximity Sensors (Inductive, Tubular Style): Type - Capacitive Proximity, General Purpose Sensor; Sensing Range - 6 mm; Voltage Range - 7-12V AC/DC; Wires - Voltage Type - NAMUR; Shielding - Unshielded; Output Type - N.O.; Connection Type - Cable; Connection Size - 2m (6.5 ft); Construction - Tubular, Threaded; Diameter - 18 mm Dia.; Material - Body - PBT; Material - Face - PBT; Enclosure Rating IEC - IEC IP68; Switching Frequency - 1 Hz; Temperature Rating - -25 deg C (-13 deg F)-70 deg C (158 deg F)