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.

An Infrared close object sensor installed on an industrial vehicle detects objects or pedestrians located in a hazardous area. When it detects a problem an audio/visual indicator makes an alert, that ...

Dorian Smith-Garcia is a diverse writer across beauty, fashion, travel, consumer goods, and tech. She writes smart and home gadget guides to help the tech-averse and newbies acclimate. She also writes ...