Fox Thermal Instruments
Fox Thermal Instruments is a US-based manufacturer of thermal mass and vortex shedding flow meters serving industrial customers in oil & gas, wastewater/biogas, pure gas, and ESG reporting applications globally.
- Company typePrivate
- Founded1994
- HeadquartersMarina, United States
- Headcount11–50
- GTM typeB2B
- OfferingHardware or Manufacturing
What Fox Thermal Instruments does
Fox Thermal Instruments is a US-based manufacturer of thermal mass flow meters and vortex shedding flow meters, founded in 1994 and headquartered in Marina, California. The company designs and produces a portfolio of seven customizable products—thermal mass flow meters (FT1, FT2A, FT3, FT4A, FT4X) and vortex shedding flow meters (VF3, VF4), plus the FC20 flow conditioner accessory—primarily serving industrial process measurement customers in oil & gas, wastewater/biogas, pure gas, ESG reporting, and general industrial applications. Its technology is differentiated by the proprietary DDC-Sensor™ (Direct Digitally Controlled Sensor), a digital sensor platform interfaced directly to the meter's microprocessor, and the Gas-SelectX® feature, which enables field-configurable gas selection without factory recalibration. Recent 2025 product launches extended the portfolio into hot-tap and multiparameter vortex measurement for gas, steam, and liquid applications.
Fox Thermal operates as a subsidiary within TASI Measurement, a diversified conglomerate that also owns Air Monitor, SignalFire, ONICON, Pulsar, and Seametrics. The company monetizes through hardware sales of its flow meters with quote-based pricing (not publicly disclosed), supported by a one-year standard warranty and ISO 9001:2015 quality certification with NIST-traceable calibrations. Go-to-market is conducted via a global network of field sales representatives and inside sales (phone and web quote requests), with products shipped to over 100 countries. The company maintains a small headcount of 11–50 employees, targets enterprise industrial buyers, and invests in technical content marketing, an online product configurator, and a "Help Me Choose" tool to support mid-funnel conversion.
Fox Thermal Instruments firmographics
Firmographics- Name
- Fox Thermal Instruments
- Legal name
- Fox Thermal
- Website
- https://foxthermalinstruments.com
- Company type
- Private
- Founded year
- 1994
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Fox Thermal Instruments is a US-based manufacturer of thermal mass and vortex shedding flow meters serving industrial customers in oil & gas, wastewater/biogas, pure gas, and ESG reporting applications globally.
- Ownership category
- akta.pro rank
Fox Thermal Instruments industry classification
Industry- Product category
- Industrial Flow Measurement Instrumentation
- NAICS
- Totalizing Fluid Meter and Counting Device Manufacturing (334514)
- SIC
- Totalizing Fluid Meters & Counting Devices (3824), Industrial Instruments For Measurement, Display, And Control (3823), Oil & Gas Field Machinery & Equipment (3533)
- akta.pro primary industry
- Sensors & Feedback Devices (Pressure, Flow, Position, Encoders, Transducers) (IMAHAGAK)
- akta.pro secondary industries
- Metering Equipment Testing, Calibration & Certification (EUAJAKAA), Gas Flow Measurement & Remote Metering Operations (Flow Computers, EFM) (EUAJAFAF), Metering, Calibration & Flow Measurement Verification (EUAEAHAM)
Keywords
Where Fox Thermal Instruments is headquartered
LocationHeadquarters
- HQ city
- Marina
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
Fox Thermal Instruments business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Supply Chain, Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure
Revenue model
- Flow Meter Hardware Sales: Sale of thermal mass flow meters and vortex shedding flow meters including models FT1, FT2A, FT3, FT4A, FT4X, VF3, VF4, and FC20 Flow Conditioner. Products are sold with standard 1-year warranty.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Multi-year contract | Custom quote-based pricing |
Go-to-market motion1 record
Distribution channels2 records
Marketing channels4 records
Fox Thermal Instruments product offering
Product offeringCore offering
Fox Thermal Instruments designs and manufactures thermal mass flow meters and vortex shedding flow meters used to measure the flow of gases, liquids, and steam in industrial process applications. Its product portfolio includes the FT1, FT2A, FT3, FT4A, and FT4X thermal mass flow meters and the VF3 and VF4 vortex shedding flow meters, supported by the FC20 flow conditioner accessory. The meters are built on the proprietary DDC-Sensor™ platform and use Gas-SelectX® correlation technology to enable field-configurable gas selection, hot-tap installation, and multivariable compensated mass flow measurement.
Product overview
Fox Thermal Instruments is a manufacturer of thermal mass flow meters and vortex shedding flow meters for industrial applications. The product portfolio includes two main technology lines: (1) Thermal Mass Flow Meters (FT1, FT2A, FT3, FT4A, FT4X) built on the proprietary DDC-Sensor technology platform with Gas-SelectX software capability, and (2) Vortex Shedding Flow Meters (VF3, VF4) including hot-tap and multiparameter variants. The company also offers the FC20 Flow Conditioner as an accessory. All products feature ISO 9001:2015 certification, NIST traceable calibration, and are supported by expert application engineering and customer service. Fox Thermal serves applications in Oil & Gas, Industrial, Wastewater/Biogas, Pure Gas, and ESG Reporting across 100+ countries.
Differentiator
Problem solved
Functional benefit
Brands
- DDC-Sensor™: Direct digitally controlled sensor technology that interfaces directly to the meter's microprocessor for more control, precision, and programmability.
- Gas-SelectX®
Products and services
- FT1 Thermal Mass Flow Meter
Quantifiable outcome
- Replacing multiple instruments with a single multivariable flow meter (VF3)
Companies that use Fox Thermal Instruments
Customer profileSegments5 records
Ideal customer profiles5 records
Fox Thermal Instruments technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature4 records
Fox Thermal Instruments partnerships and signals
Strategic signalScale indicators5 records
Recent moves6 records
Expansion highlights4 records
Fox Thermal Instruments competitors and assessment
Company assessmentBroad incumbents
- Endress+Hauser: Global leader in industrial process instrumentation including a comprehensive thermal mass flow meter portfolio. Directly competes with Fox Thermal across gas, steam, and liquid measurement applications, with much greater scale and direct enterprise sales coverage.
- Emerson (Rosemount): Major industrial automation player with the Rosemount flow measurement line covering Coriolis, magnetic, and vortex meters. Competes with Fox Thermal in oil & gas and general industrial flow applications through a global direct sales force.
- Yokogawa Electric: Global industrial automation company offering flow meters alongside broader process control systems. Overlaps with Fox Thermal in industrial gas flow measurement, particularly in oil & gas and power generation.
- Siemens: Diversified industrial conglomerate with SITRANS flow measurement products including Coriolis, ultrasonic, and vortex meters. Competes with Fox Thermal across industrial process and oil & gas flow applications.
- ABB: Global industrial automation and process instrumentation provider with a broad flow meter portfolio. Overlaps with Fox Thermal in industrial, oil & gas, and wastewater flow measurement applications.
Direct peers
- Sierra Instruments: Specialty manufacturer of thermal mass flow meters and controllers for industrial gas applications. Closest direct competitor to Fox Thermal's thermal mass flow product line with similar target customers and channel model.
- Fluid Components International (FCI): Manufacturer of thermal dispersion and other flow and level instrumentation for industrial process markets. Directly comparable to Fox Thermal in thermal mass flow technology and target verticals including oil & gas and wastewater.
- KROHNE: European-based process instrumentation specialist offering a broad flow meter portfolio including thermal mass and vortex technologies. Competes directly with Fox Thermal in industrial and oil & gas flow applications.
- Brooks Instrument: Specialty manufacturer of thermal mass flow controllers and meters, particularly strong in pure/specialty gas applications. Directly competes with Fox Thermal in pure gas and industrial gas flow markets.
Others
- ONICON (TASI Measurement sister brand): Sister brand under the TASI Measurement umbrella offering flow and energy measurement products for HVAC and building automation. Not a direct competitor but provides cross-brand portfolio context within the same parent organization.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks6 records
Key highlights7 records
Customer concentration
Fox Thermal Instruments social profiles
Digital presenceFox Thermal Instruments compliance and trust
Trust signalCompliance1 record
Fox Thermal Instruments financial estimates
Financial estimateRevenue estimate
Valuation estimate
Fox Thermal Instruments leadership team
Management profileNumber of profiles
Fox Thermal Instruments funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Fox Thermal Instruments M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Fox Thermal Instruments
What does Fox Thermal Instruments do?
Fox Thermal Instruments designs and manufactures thermal mass flow meters and vortex shedding flow meters used to measure the flow of gases, liquids, and steam in industrial process applications. Its product portfolio includes the FT1, FT2A, FT3, FT4A, and FT4X thermal mass flow meters and the VF3 and VF4 vortex shedding flow meters, supported by the FC20 flow conditioner accessory. The meters are built on the proprietary DDC-Sensor™ platform and use Gas-SelectX® correlation technology to enable field-configurable gas selection, hot-tap installation, and multivariable compensated mass flow measurement.
Is Fox Thermal Instruments a public or private company?
Fox Thermal Instruments is a private company. It is classified as corporate owned and is currently operating.
When was Fox Thermal Instruments founded?
Fox Thermal Instruments was founded in 1994. It employs 11 to 50 people.
Where is Fox Thermal Instruments based?
Fox Thermal Instruments is headquartered in Marina, United States, in the North America region.
How does Fox Thermal Instruments make money?
One revenue line is on record: flow Meter Hardware Sales.
Who are Fox Thermal Instruments's main competitors?
Broad incumbents on record are Endress+Hauser, Emerson (Rosemount), Yokogawa Electric, Siemens and ABB. Direct peers are Sierra Instruments, Fluid Components International (FCI), KROHNE and Brooks Instrument. ONICON (TASI Measurement sister brand) is listed as an others.
Does Fox Thermal Instruments have an API?
No public API is recorded for Fox Thermal Instruments.
What industry is Fox Thermal Instruments in?
Fox Thermal Instruments's product category is Industrial Flow Measurement Instrumentation. Its primary akta.pro industry code is IMAHAGAK, Sensors & Feedback Devices (Pressure, Flow, Position, Encoders, Transducers), with a secondary code of EUAJAKAA, Metering Equipment Testing, Calibration & Certification. Its NAICS code is 334514 and its SIC code is 3824.