Outdoor 180 Degree PIR Induction Motion Sensor Detector Wall LED Light Auto Switch IR Human Infrared Detector Waterproof 12M Home Safety If you want to see more, please click #yoyo2018 Features: *Utilizes the infrared energy from human as control-signal source. Can start the load at once when one enters detection field. *Adopts good sensitivity detector, integrated circuit and SMT.
May 14, 2017· PIR (passive infrared) motion sensor detects any movement of objects, human or animals. Mostly they are used in automatically activated lighting and burglar alarm systems. Every object with temperature above absolute zero emit heat in the form of infrared radiation. PIR motion sensor detects change in the infrared radiation impinging on it.