Superstatic heat and cooling meters use a static measurement principle, hence without moving parts. Available in a wide range of flow rates, they are used in building technology and automation and in district heating. The fluidic oscillator principle guarantees the precision and stability of measurements for reliable flow and energy readings. Superstatic heat meters also work perfectly if the water is dirty or if magnetite deposits build up in the pipes. The fluidic oscillator principle was developed by NASA and refined by Sontex for measurement purposes.