This VL1A-NFQ40-30NO-AC/DCLM12 is an inductive proximity sensor with a Q40 mm PBT with a Non Flush mounting design. It has a plastic body length of 115*40*40mm and is 2 Wire , AC/DC, NO, with a sensing distance of 30 mm and an M12, 4 pins connector. It has a power supply of 20~250V AC/DC and protection rating of IP67. This highly durable sensor is perfect for Industrial Automation applications.