Sensors are electronic devices that measure and monitor environmental conditions. Data recorded by these devices are usually collected by a computer, which then uses the information to take action. Sensors measure physical qualities such as speed and can be found in many devices that you use on a regular basis.

For example, you can equip a freezer with a sensor linked to its thermostat controller. When the device senses that the temperature in the freezer has increased past the acceptable limit, it may trigger the thermostat to kick in and lower the temperature until the freezer is once again cold enough.

People also searched for…