Turck, BC5-QF5.5-AP6X2/S250, Capacitive Sensor, Rectangle, 5 mm Sensing Distance, =2% Full Scale Accuracy, 10 Output, NO Contact Configuration, 30 V DC, </=200 mA, 0.1 kHz Frequency Response, Cable Connection, 5.5 mm H x 20.3 mm W x 54 mm H Size, IP67 Enclosure, -25 to 70 deg C, Flush/Non-Flush Mounting, Plastic/PP