Carlo Gavazzi CA18CAN12NA Proximity Sensors Capacitive Proximity Sensor, Non-flush mountable, Sensing Range 12mm, Adjustable 3-15mm, Power Supply 10-40VDC, NPN Output, N.O. and N.C., Cable PVC, Housing M18 x 70mm, 4th Generation Tripleshield, Improved EMC performances, ECOLAB, IP67 IP69K