This VL1W-F12N-04NO-3LM12 is an inductive proximity sensor with a M12 mm Copper-plated Teflon body with a Flush mounting design and POM Teflon plated face matereal. It has a coated anticorrosion and anti magnetic metal body length of 68 mm and is NPN-NO, with a sensing distance of 4 mm and an M12 Connector , 4 pins , Male type. It has a power supply of 10-30 VDC and protection rating of IP67. This highly durable sensor is perfect for Industrial Automation applications.