Sensors and relays usually work locally, at the foot of tanks, machinery, instruments, etc. If until now your actions and results had to be transmitted through extensively wired buses, IoT technology opens a new scenario where data is transmitted wirelessly, at high speed and in greater quantity. Its remote storage in the cloud together with powerful analysis tools that can be run from any web browser, anywhere, expands the possibilities of control and efficiency to limits that have yet to be defined.