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.
noun. 1 A person who concentrates primarily on a particular subject or activity; a person highly skilled in a specific and restricted field: he is a specialist in psychometric testing [with modifier]: the study was undertaken by a market-research specialist. Employers in the financial services sector are slow to recruit marketing candidates from outside their own specialist field. 2  Not long ago, technology recruitment was one of the most active, and profitable, specialist areas within the Irish recruitment market.