ONICON Incorporated is a leader in flow and energy measurement solutions and delivers comprehensive solutions for our customers’ needs. We specialize in HVAC flow and energy …

ONICON offers a full line of products for flow measurement and BTU measurement systems for commercial HVAC applications.

Access ONICON’s resources—brochures, spec sheets, installation guides, and technical documents—all in one convenient location.

ONICON continues to have a strong reputation for product excellence and superior customer support. Contact us for your sales and customer service needs.

Learn about ONICON Incorporated and our market leading HVAC flow and energy measurement products that have paved the way since 1987!

ONICON BTU meters are used in a variety of applications including commercial HVAC systems and district heating and cooling systems. Our BTU meters are highly accurate and reliable, and feature …

Ultrasonic flow meters from ONICON are designed to deliver accurate flow measurement in hydronic and domestic water applications. Shop our selection today.

Discover ONICON's accurate electromagnetic flow meters. Industry-leading tech for reliable flow measurement. Elevate accuracy today!

Browse ONICON’s catalog sheets—detailed specifications, features, and application data at your fingertips sheets for all ONICON products.

ONICON's FT-3000 Series family of Inline Electromagnetic Flow Meters are suitable for measuring electrically conductive liquids in a wide variety of commercial HVAC applications.