This VL1A-NFQ40-30NO-ACSM12 is an inductive proximity sensor with a Q40, PBT body with a Non Flush mounting design. It has a plastic body length of 65*40*40 mm and is 2 Wire , AC, NO, with a sensing distance of 30 mm and an M12, 4 pins connector. It has a power supply of 20~250V and protection rating of IP67. This highly durable sensor is perfect for Industrial Automation applications.