Since 1987, ONICON Incorporated has been a trusted leader in flow and energy measurement solutions for hydronic heating and cooling systems. For nearly four decades, we’ve combined engineering expertise with a commitment to quality, delivering reliable instruments that help our customers optimize system performance.

Our comprehensive portfolio includes electromagnetic, turbine, ultrasonic, thermal, and vortex flow meters, along with precision BTU (energy) meters that seamlessly integrate with the technology best suited to your application. Every product is wet-calibrated, fully programmed, and ready to install, ensuring simplified setup and exceptional accuracy right out of the box.

Supported by a nationwide network of skilled application engineers and industry-focused manufacturer representatives, we provide hands-on expertise and personalized guidance for every project. Above all, ONICON is driven by a service-first mindset — we take pride in delivering solutions and support that exceed customer expectations.

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