This VL1C-NF08N-04NO-SM12 is an inductive proximity sensor with a M8 mm Nickel plated brass body with a Non Flush mounting design. It has a metal body length of 53 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.