A Level Switch can be electronic or mechanical, but it provides only one purpose: it alerts anyone if the product is detected. This enables one to take action in response to the alert. We can control the process in various ways in a level application. A consistent application includes a transmitter that sends online data to the control system. In a simple process, we could use a level switch to determine whether we have 50 or 100 percent of the level. A level switch informs the system if the quantified level of the substance is within expected parameters or not.