The SIKA oval wheel meters were developed for volume and volumetric flow measurement of liquids. They are used in applications such as lubricant monitoring or food and beverage production.

Oval wheel meters are displacement flow meters that transport defined partial volumes in individual measuring chambers. The sensor element consists of two high-precision, toothed oval wheels that are driven by the flow of the medium and roll upon each other. With each revolution of the oval wheel pair, a specific volume is thus transported. The number of revolutions is the measure of the amount of liquid passed through. The revolutions are recorded by a sensor element.