Without physical contact, the sensor inductive proximity is a non-contact electronic device that detects the presence or absence of an object. The sensor is basically an alternating magnetic field that occurs in a space where it constantly reverses direction and then induces current and measure the changes to this field when conductive material approaches. One of the main features is to detect position of parts; other include counting and safety applications for machines to prevent damage. Also worthy of mention are technological characteristics such as a sturdy design which resists dust, water and vibration, as well variety in housing materials and sizes to suit different industrial environments. Applications cover warehousing communities (landing gear automatically extending), microelectronics manufacturers who make tiny components, process control and temperature monitoring equipment where precision and reliability are important, and many other fields.