Vortex flowmeters can be used to measure gases and low viscosity liquids over a wide range of conditions, and with the advancement of multi-variable flow measurement capabilities, they are also capable of directly outputting specified units of measurement such as standard volume of gas, standard volume of liquid, mass flow rate, and energy/heat index values such as British Thermal Units (BTU). The vortex flowmeter market has seen steady growth in recent years, primarily due to its use in saturated steam, oil, and gas systems.