Motion sensor
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This is an old revision of this page, as edited by TheAmericanRedoubt (Talk | contribs) at 05:48, January 26, 2016. It may differ significantly from current revision.
A motion sensor is a device that detects movement and triggers some sort of response.
Types
- 'Infrared' electronics sensors are the most commonly used by modern security systems.
- Primitive motion detectors have been used since prehistory and could be as simple as tin cans on a stick.
- Sonic