This VL1C-NF30P-40NC-SM12 is an inductive proximity sensor with a M30 mm Nickel plated brass body with a Non Flush mounting design. It has a metal body length of 53 mm and is PNP-NC, with a sensing distance of 40 mm and an M12 Connector. It has a power supply of 10-30 VDC and protection rating of IP67. This highly durable sensor is perfect for Industrial Automation applications.