A passive infrared sensor (PIR sensor) is an electronic sensor that measures infrared (IR) light radiating from objects in its field of view. They are most often used in PIR-based motion detectors.
Recruitment (hiring) is a core function of human resource management. It is the first step of appointment. Recruitment refers to the overall process of attracting, shortlisting, selecting and appointing suitable candidates for jobs (either permanent or temporary) within an organization.
Recruitment is a term used to describe the entire process of finding and hiring qualified human talent for an open vacancy or for a proactive hire for an organization. In the United States, recruitment is more frequently referred to as recruiting, talent acquisition, or hiring.