====== Sensor ======
A **sensor** is a device which registers the changes of certain physical or chemical quantities.

Sensors are applied in the watch sector, for example in modern [[quartz watch]]es, especially those that have been designed for outdoor activities. Such models often have integrated in their case miniaturized [[https://en.wikipedia.org/wiki/Barometer|barometers]], [[https://en.wikipedia.org/wiki/Thermometer|thermometers]] or [[https://en.wikipedia.org/wiki/Altimeter|altimeters]].


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