A transducer converts a signal in a form of energy into a signal in another form. In a context of IoT sensors this simply means that sensors are able to sense conditions in or around the IoT device in which they are present and in and around the (state and environments of) physical item to which they are attached. Sensors can detect the events or changes in the environments and for the purposes for which they were designed and communicate about these events or changes of specific parameters to systems and other devices which then can use this data for actions, analysis and so forth.