MEZOLEN is a well-established European flowmeter manufacturer founded by the Spanish Listarens family. It has two research and development centers located in Catalonia, Spain and Colorado, USA.

Catalonia R&D Center, Spain
The research and development center located in Catalonia, Spain is the first one established by MEZOLEN, situated in the beautiful coastal city of Tarragona. The newly developed SIL II and SIL III certified ultrasonic flow meters, led by the R&D center, are designed and developed strictly in accordance with the IEC61508 standard and applied to SIS systems in various industries worldwide. Since their launch, they have received continuous praise; The torch gas ultrasonic flowmeter developed by the R&D center, which complies with environmental certifications from various countries around the world, strengthens users' monitoring and management of exhaust gas, and assists in controlling the combustion system according to working conditions, effectively reducing the pollution of exhaust gas to the environment and meeting the requirements of global "carbon neutrality" and "carbon peak"; The intrinsically safe ultrasonic flowmeter developed by the R&D center has a low-power design and can be applied to the vast majority of explosion-proof working conditions.

US R&D Center
The Colorado R&D Center in the United States is the second R&D center established by MEZOLEN, following the Catalonia R&D Center in Spain. Located in the classical town of Westminster. With the rise of artificial intelligence, the Westminster Research and Development Center, which is known for its algorithms, is becoming increasingly prominent in its functions. It is believed that this will lay a solid foundation for the birth of the next generation of artificial intelligence ultrasonic flow meters.