MODULE
It is an electronic device or module or a subsystem that conveys or precedes the information to other electronic devices such as computer processor, after detecting events around it or in its environment. A sensor is not a unitary device; it is always in connection with other electronic devices; it may be as simple as a ray of light or as complex as a computer system. The sensitivity of a sensor measures how much output changes occur in the form of signal for a measured input change.
