ONICON Incorporated is a leader in HVAC flow & BTU measurement.Our range of products includes turbine meters, vortex meters, electromagnetic meters, thermal mass flow meters, and clamp-on ultrasonic meters as well as BTU meters and display modules. ONICON continually delivers comprehensive solutions for all our customers’ flow and BTU measurement needs.

  • Hospitals
  • Commercial Buildings
  • Laboratories
  • Universities and Education Buildings
  • Multi-Family Residential Unit Energy Monitoring


ONICON offers a full line of flow measurement and BTU measurement systems for HVAC, municipal and process applications. Every ONICON flow meter is built-to-order and calibrated against internationally recognized standards. This allows ONICON to provide exceptional accuracy and performance while remaining competitively priced against “off-the-shelf” quality products.

Products Include:                                                                                      
  • Turbine Flow Meters (Liquids & Steam)
  • Electromagnetic Flow Meters (Liquids)
  • Ultrasonic Flow Meters (Liquids)
  • Thermal Mass Meters (Gases)
  • Vortex Flow Meters (Steam Gases & Liquids)
  • BTU Meters
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