RELIABLE FLOW METERS DESIGNED FOR COMPRESSED AIR AND GAS Our flow meters operate based on the calorimetric measuring principle. Consequently, there is no need for supplementary temperature and pressure compensation when measuring thermal mass flow or standard volume flow. The standard volume serves as a universally accepted volumetric unit for comparing gas quantities under diverse pressures and temperatures. To comply with different standards, users can conveniently adjust the reference conditions directly on the flow meter's display. This ensures that our dependable flow meters accurately measure consumption and flow within the specific standards preferred by our customers.