Typically installed within a compressed air network, sensors use various methods to measure flow, including thermal, ultrasonic, or pressure-based techniques. Thermal-based flow and consumption sensors employ a heated element and measure the cooling effect caused by the passing air, while ultrasonic-based ones utilize sound waves to determine flow velocity. On the other hand, pressure-based sensors rely on pressure differentials to calculate flow rates.

The collected data from these sensors is then processed and transmitted to a control system or display unit, where it can be analyzed and monitored. This information provides valuable insights into the actual air consumption, allowing operators to identify potential leaks, inefficiencies, or abnormal usage patterns.

In addition to monitoring air consumption, some advanced flow and consumption sensors offer useful features such as data logging, alarm, and remote monitoring capabilities. These features give businesses a comprehensive view of their compressed air systems, facilitating proactive maintenance and reducing system downtime.