The E57G-18UNN12-Q Sensor from Eaton is an inductive sensor with an output configuration of NPN / NO, a sensing distance of 0-12mm, an operating voltage of 10-30VDC, and a M18 thread size. This sensor is used for detection of metal objects such as screws, tools, and various components in machine tools, robots, and many other automated systems. The use of this sensor allows for a cost-effective and reliable detection of metal objects within a defined area, without the need for delicate adjustment.