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. PIR sensors are commonly used in security alarms and automatic lighting applications.
Do you know the advantages of the PIR sensor?
Detects motion reliably indoors as well as in day or dark. It consumes less energy (0.8W to 1.0W) compare to the microwave sensor.
They are cheaper compared to microwave sensors. They are good for electrical applications used in smaller and compact premises.
PIR sensor media players are widely used in shopping malls, restaurants, museums, etc. The player will auto loop play the homepage files after powered on. When the motion sensor detects a person, it will switch to the specific files.