Mass Flow Meters, Flow and Level Switches for Process Measurement and Automation

Our diverse product range of thermal mass flow meters, flow switches, and liquid level switches are designed to meet the specific requirements of your processes. We are not just about products. We are about building partnerships that foster innovation and growth.


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Explore Our Range of Flow & Level Offerings

Thermal Mass Flow Meters

Thermal Mass Flow Meters

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Flow Switches

Flow Switches

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Level Switches

Level Switches

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Why Choose us?

Experience exceptional accuracy and repeatability with our thermal mass air/gas flow meters, liquid/gas flow switches, and liquid level switches. FCI is trusted by the largest installed base worldwide of thermal dispersion technology products. Benefit from unmatched, ultra-dependable performance in critical process and plant applications, backed by a legacy of responsive global support, ensuring your operations run seamlessly for years to come.

We serve global markets from our design and manufacturing site in San Marcos, CA (USA), and numerous sales and service offices, and distributor locations, around the globe. Our FCI brand is committed to delivering the highest quality and support wherever you operate.

Experience our Products:

Explore our wide range of Thermal Mass Gas Flow Meters and experience superior accuracy and minimal maintenance with our most advanced meters designed for a variety of gaseous substances.

Utilize our high-reliability Flow and Level Switches designed for your critical process measurements, ensuring operational continuity and safety.

Unlock precision in flow measurement with our cutting edge Flow Conditioners, designed to ensure consistent, accurate, and reliable measurement under the most difficult and space constrained installation settings.

We also cater to unique needs with Custom-designs and OEM-Products that integrate seamlessly into your existing systems.

Let us help you:

Learn from our flow and level measurement experts through product knowledge workshops and access to our extensive support network through our global service centers. Request quotes easily through our streamlined online and offline services and stay informed with our latest innovations and application knowledge.