Sensors are detectors that have the ability to measure some type of physical quality that is happening, such as pressure or light. The sensor will then be able to convert the measurement into a signal that one will be able to read. Most of the sensors in use today are actually going to be able to communicate with an electronic device that is going to be doing the measuring and recording. Today, you are going to be able to find sensors in a wide range of different devices that you use regularly. The touch screen that you have on your phone has sensors, and they use pressure sensors for opening the doors at the market. Sensors are a very common part of everyday life.