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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.
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 man and woman were walking along the beach at Smith Point County Park in Shirley just before 5 p.m. when they spotted the bone, police said.
When and where to watch the ball drop in Times Square. Viewing areas opened at 3 p.m. Tuesday. Entry was first-come, first-served at checkpoints located at 49th, 52nd and 56th streets on Sixth and ...
As the holiday season lights up New York City, few traditions shine brighter than the iconic holiday windows at Bergdorf Goodman. The luxury department store 's displays are more than just ...
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