?The Eaton E57G-30UPN22-C2 is a piece of inductive sensing technology which allows for the detection of metal objects without contact. This sensor features a PNP/NO output configuration, has a sensing range of 0-22 mm, is powered by a 10-30 VDC input, and has a M30 thread diameter. The inductive sensor is designed to alert the user to the presence, absence, or approach of metal targets. This type of sensing device provides extremely reliable detection with a high degree of accuracy, and it is designed to be used in a variety of applications.