The world’s first compact ultrasonic gas meter available in four sizes from DN50 to DN150: FLOWSIC500 from SICK. The gas flow meter is designed for fiscal metering ‒ allowing highly precise gas flow measurement, e.g. for municipal gas suppliers and industrial consumers. The compact design requires very little space and operates without mechanical moving parts. The measuring components are installed in a cartridge, which is replaced in only a few steps, e.g. for on-site recalibration. To sum it up: highest measurement certainty and easy handling combined with reduced installation and operating costs.