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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.
A passive infrared sensor used to detect motion. The passive infrared (PIR) motion detector is one of the most common sensors found in household and small business environments. This sensor does not generate or radiate energy; it works entirely by detecting the heat energy given off by other objects. PIR sensors identify abrupt changes in ...
A motion detector attached to an outdoor, automatic light. A motion detector is an electrical device that utilizes a sensor to detect nearby motion (motion detection).Such a device is often integrated as a component of a system that automatically performs a task or alerts a user of motion in an area.
The post This alarm detects motion anywhere in your home using Wi-Fi waves, and it blew my mind appeared first on BGR. This alarm detects motion anywhere in your home using Wi-Fi waves, and it ...
Alarms often come with a mix of features. Remote car alarms typically consist of an additional radio receiver that allows the owner to wirelessly control the alarm from a key fob. Remote car alarms typically come equipped with an array of sensors along with immobilizers and motion detectors. [citation needed]
Motion sensors create zones which cannot be accessed without sounding an alarm. Most cameras do now have a motion detection function, with some brands having thermal detection so they only activate when sensing a heat signature. This function is used so cameras do not pick up false alarms from trees blowing in the wind. [11]
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