Answer:

Motion detection is the process of detecting a change in the position of an object relative to its surroundings or a change in the surroundings relative to an object. Detection of Motion can be achieved by either mechanical or electronic methods.

A motion sensor (or motion detector) is the linchpin of your security system because it detects when someone is in your home when they shouldn't be. A motion sensor uses one or multiple technologies to detect movement in an area.

Explanation:

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