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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.
Traditionally motion sensors are an integral part of a home security system. These devices are typically installed to cover a large area as they commonly cover up to 40 ft (12 m), with a 135° field of vision. A type of motion sensor was used by the Japanese since ancient times.
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.
The top 10 best Christmas gifts of 2024. ... This cookbook is a must-own for home chefs of all ability levels. We named it one of the best cookbooks of 2024 for its excellent recipe variety.
A viral TikTok video reveals hidden termites inside an ornament, highlighting the importance of inspecting any holiday decor stored in attics or basements.
A Christmas tree inside a home, with the top of the tree containing a decoration symbolizing the Star of Bethlehem. [18]The Christmas tree was first used by German Lutherans in the 16th century, with records indicating that a Christmas tree was placed in the Cathedral of Strassburg in 1539, under the leadership of the Protestant Reformer, Martin Bucer.
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