Our Brands

ONICON Measurement Solutions Acquisition

Effective April 23, 2019 ONICON Measurement Solutions is pleased to announce the company has been acquired by the TASI Group ( www.tasigroup.com ). The TASI Group is a privately-owned industrial business focused on Test, Measurement, Inspection, and Assembly instruments and equipment. All ONICON Measurement Solutions business units (ONICON, Air Monitor, Fox Thermal, Seametrics, Greyline and Pulsar Process Measurement) are included in this transaction. The ONICON Measurement Solutions companies will become part of the existing TASI Flow Group of companies which are currently comprised of AW-Lake Company, Exact Dispensing Systems, KEM GmbH, Litremeter, SignalFire Wireless Telemetry, and Vogtlin Instruments. John Norris, current president of ONICON Measurement Solutions, was named as President of the TASI Flow Group and will report to John McKenna, TASI Group President and CEO.

John Norris comments that “ONICON Measurements Solutions joining TASI Flow is a great next step in our continuing development as a premier flow and level measurement business. Together we have an impressive and extensive technology offering to better serve our customers around the globe and fuel further growth.”

All ONICON Measurement Solutions companies will continue to serve their customers by manufacturing quality flow and energy measurement devices and will honor their commitments to their customers with excellent customer service. The ONICON family of companies is excited about this acquisition and looks forward to continued business with you going forward.

Explore all the brands in the TASI Flow Group below:

Frequently Asked Questions
  • Has ONICON been acquired?
    • Yes. Effective April 24, 2019 ONICON became part of the TASI Group. This is a large, multi-national, company with businesses focused on Test, Measurement, Inspection and Assembly instruments and equipment. They have a significant Flow Group that we will be joining. It is a privately held, family owned business that has been in existence for many years.
  • Does this include all ONICON companies (Greyline, Pulsar, Fox Thermal, Air Monitor, and Seametrics)?
    • Yes.
  • What changes will happen to the business?
    • Inventory is complete and shipments have resumed as of Friday, April 26th. Thank you for your patience.In the longer term, we will be the major part of the TASI Flow Group of companies. We are expected to continue to execute our plans and to be successful in the market.
  • Is a move contemplated?
    • No move is contemplated.
  • Any changes to how we order products?
    • No for the foreseeable future.
  • Is it possible to gain access to other TASI Flow Group products through ONICON?
    • It is too early to tell. Please forward to sales management
  • Have the company names changed? Will we need a new W-9? Will your Remit-to address change?
    • No changes are anticipated in how we do business together.

Air Monitor

Air Monitor has been delivering airflow measurement solutions since 1967 – 50 years! We are the premier solutions provider for the Commercial HVAC, Industrial Process, and Power Generation markets. We are the only dedicated airflow solutions provider with expertise in differential pressure and thermal dispersion measurement technologies.

AW-Lake Company

AW-Lake Company manufactures inline, positive displacement, mass Coriolis, variable area and turbine flow meters with an impressive array of electronic output and control options including; electronic sensors, inline optical sensors, flow switches/alarms and transmitters. The company’s flow monitoring products can be found in a broad array of market applications in the oil & gas, transportation, industrial, process, sanitary and medical / life sciences market segments.

Exact Dispensing Systems

Since 1978, Exact Dispensing Systems have designed and manufactured high quality equipment for the dispensing of single component fluids and plural component reactive resins such as epoxies, urethanes and silicones. Their materials and application expertise helps clients make the best decisions regarding their specific dispensing application. The EXACT staff members always take the time to understand the customer’s process requirements and then develop a valid, sensible, cost-effective dispensing solution to meet those needs.

Fox Thermal

After more than 20 years of manufacturing thermal gas mass flowmeters, Fox Thermal continues to lead the market in innovative, reliable, accurate, and full-featured flow meters. Our exceptional team of mechanical, electronic, and software engineers have helped to shape the thermal mass flow measurement industry.

KEM Küppers Elektromechanik GmbH

With more than 50 years of experience, complemented by innovative and customer-specific product development, KEM Küppers Elektromechanik GmbH is an expert in flow measuring technology and calibration. KEM is an independent, vertically integrated manufacturer that designs and produces standard and customized mechanical or static flow meter solutions.

Litre Meter

Litre Meter has been manufacturing flow meters since 1975 and positive displacement flow meters since 1986. This reservoir of knowledge is used to expertly select the appropriate meter technology and provide effective flow measurement solutions. Main markets are chemical injection and hydraulic applications in the Oil & Gas sector worldwide.


ONICON Incorporated has been delivering market leading flow and energy measurement products since 1987. For more than 30 years we have been exclusively focused on delivering quality engineered flow and energy measurement instruments for hydronic heating and cooling systems. Our broad range of product solutions are wet calibrated, fully programmed for your application, and ready to use right out of the box.

Pulsar Process Measurement

Delivering the Measure of Possibility, Pulsar Measurement is a world-leading manufacturer and supplier of flow, level, sludge interface measurement, and pump control instrumentation. Technologies include clamp-on transit time and doppler ultrasonic for flow measurement in full pipes, contacting and non-contacting solutions for area-velocity for flow measurement in partially filled pipes and channels, and continuous level measurement via ultrasonic or frequency modulated continuous wave radar.


Seametrics, an ONICON Measurement Solutions business, is a designer and manufacturer of a wide variety of flow metering and submersible sensor products. Since 1990 we have provided innovative solutions to users in irrigation, fracking, water treatment, groundwater, surface water, and chemical processing applications. Our products have a reputation for durability and accuracy at a competitive price, and are sold through a network of domestic and international distributors.


SignalFire’s unique Open Architecture Wireless Mesh Network permits users to create wireless sensor networks using the sensors and actuators best suited for the job rather than the a wireless option provided by a sensor vendor. SignalFire’s Intrinsically Safe battery powered nodes can power both the attached sensors and the wireless system making the system Truly Wireless.

Vögtlin Instruments GmbH

Vögtlin Instruments GmbH is a Swiss Designer of Gas flow Measurement and Control Instruments. Vögtlin has over 25 years of experience in designing and manufacturing high precision Thermal Mass Flow Meters and Controllers, Variable Area Flow Meters and Control Valves. The core competence on Calibration and OEM Solutions together with the Application Expertise throughout its worldwide Sales Partner Network make Vögtlin a strongly respected player in various industrial fields such as Medical, Biotechnology, Surface Treatment, Coating & Hardening and New Energy.