Definition of Sensor

The sensors are the devices specially generated for detection and measurement of the light, sounds, temperatures, humidity, signals, and pressures. While sensors work according to the input provided to the sensors for functions. Various types of commonly used specific input for the sensors are light, motion, pressure and heat. Sensors detect that input and provide response according to this. Considering all the functionally and important outcomes of the sensors functionally we can define sensors as

“A device used for gaining specific output through detecting, measuring physical quantities, and responding regarding provided specific input.”