Engineered to monitor energy flows for saturated and superheated steam or hot water, the KROHNE OPTISWIRL 4200 vortex flow meter measures conducting and non-conducting liquids, gases and steam. The device can be installed as a heat meter in the feed line directly connected with an external temperature sensor in the return line. It also can be used for applications such as steam boiler monitoring, burner consumption measurement or compressed air network monitoring, including free air delivery applications. Temperature and pressure compensation options are available to enable the calculation of standard flow volume under fluctuating pressures and temperatures.