ONICON Incorporated is a manufacturer of highly accurate flow meters and energy measurement systems (BTU meters), which are ideally suited for HVAC, municipal water and process applications. ONICON offers engineered, customized solutions for today`s flow measurement challenges...at prices that are competitive with distributed, `off the shelf` products.

Company details

11451 Belcher Road South , Largo , Florida 33773 USA

Locations Served


Our Distributors

Business Type:
Industry Type:
Monitoring and Testing
Market Focus:
Nationally (across the country)

This company also provides solutions for other industrial applications.
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ONICON Incorporated has been in the flow measurement and hydronic energy business since 1987. Headquartered in Largo, FL, ONICON designs and manufactures a full line of highly accurate flow meters and energy measurement systems. Our wide range of products includes turbine, vortex, electromagnetic, thermal mass, and clamp-on ultrasonic meters as well as BTU meters and display modules. Together, our broad and competitively priced product suite continually provides our customers comprehensive options for their flow measurement requirements.

As a worldwide leader, our engineered solutions are specifically tailored to our customers’ unique needs. Every product is individually wet-calibrated, and all products are delivered fully programmed for your application and ready to use right out of the box. This attention to detail simplifies installation and maximizes performance.

ONICON has always had a very strong presence in the HVAC market with an additional focus on municipal water, power plants, large universities and property management-tenant finish. From individual installations to central energy plants to campus wide systems, we partner closely with our customers to ensure projects are completed on time and within budget. Our extensive research and development activities repeatedly bring new products and innovative energy measurement features to market.

ONICON maintains extensive sales coverage by highly trained and knowledgeable sales engineers and manufacturers’ representatives who understand the industry and our customers’ energy requirements.  We work with our customers before, during and after the sale offering in-depth application consulting.

Most importantly, ONICON is a service oriented organization with an unsurpassed commitment to customer satisfaction. ONICON continues to have a strong reputation for product excellence and superior customer support.