This VL1A-F30-16NC-ACLM12 is an inductive proximity sensor with a M30 mm Nickel plated brass body with a flush mounting design. It has a metal body length of 79 mm and is 2 Wire , AC, NC, with a sensing distance of 16 mm and an M12 Connector , 4 pins , Male type. It has a power supply of 20~250V and protection rating of IP67. This highly durable sensor is perfect for Industrial Automation applications.