EN 60947-5-2 specifies requirements for proximity sensors and switches, which are used for detecting the presence or absence of objects, or the change in position of an object, without physical contact. These devices are commonly employed in industrial environments for automation and control applications. The standard covers aspects such as performance, safety, and testing procedures to ensure reliable operation and compliance with electromagnetic compatibility (EMC) requirements. It includes requirements for different types of proximity sensors, including those using inductive, capacitive, optical, and ultrasonic technologies. The aim is to ensure that these sensors meet performance criteria and safety standards for effective and safe use in various industrial applications.