Sensor - Wikipedia
https://en.wikipedia.org/wiki/Sensor
OverviewClassification of measurement errorsChemical sensorBiosensorNeuromorphic sensorsMOS sensorsSee alsoFurther readingA sensor is a device that produces an output signal for the purpose of detecting a physical phenomenon. In the broadest definition, a sensor is a device, module, machine, or subsystem that detects events or changes in its environment and sends the information to other electronics, frequently a computer processor.
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