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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.
Occupancy sensor types include: PIR sensors, which work on heat difference detection, measuring infrared radiation.Inside the device is a pyroelectric sensor which can detect the sudden presence of objects (such as humans) who radiate a temperature different from the temperature of the background, such as the room temperature of a wall.
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Car alarms should not be confused with immobilizers; although the purpose of both may be to deter car theft, they operate in a dissimilar fashion.An immobilizer generally will not offer any audible or visual theft deterrence, nor require any more input from the driver than from the driver of a non-immobilizer car.
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2025 fitness trends are expected to include strength training, a holistic mind-body approach, more wearable tech, and AI-generated workouts, to name a few.
Dominique Pélicot — who was found guilty of drugging and raping his wife Gisèle Pélicot and inviting dozens to sexually assault her over the course of nearly 10 years — is facing renewed ...
Indianapolis Colts quarterback Anthony Richardson (5) runs the ball during the first half of an NFL football game against the Tennessee Titans, Sunday, Dec. 22, 2024, in Indianapolis.