Thermal Mass Flow Meter measures 3-gas mixes.

Press Release Summary:

Designed for common gas monitoring applications, Model FT1 features retractors for 5 probe sizes including 15, 18, 24, 30, and 36 in. Gas-SelectX® gas menu includes Air, Argon, Butane, Carbon Dioxide, Methane, Natural Gas, Nitrogen, Oxygen, Helium, Hydrogen, Propane, and 3-gas mixes. Featuring Zero CAL-CHECK® in-situ calibration validation routine and USB port for direct meter-to-PC connections, Model FT1 includes FM and FMc Class I Division 1 approvals as well as ATEX and IECEx Zone 1 approvals.

Original Press Release:

Fox Thermal Instruments Expands Model FT1 Product Features

MARINA, Calif. – Fox Thermal Instruments announced today the addition of several great new features for their newest product, the Fox Model FT1 Thermal Mass Flow Meter.

Along with gaining agency approvals, Fox has expanded the available features for the Model FT1to include the following:

• Retractors for five (5) probe sizes (15”, 18”, 24”, 30”, and 36”)

• HART communication option

• FM (U.S.) and FMc (Canada) Class I Division 1 Approvals*

• ATEX (EU) and IECEx (Global) Zone 1 Approvals*

• More gases in the Gas-SelectX® gas selection menu and a three-gas mix!

Due to the sophisticated DDC-Sensor™ design and the Gas-SelectX® gas selection menu’s versatile uses, the FT1 has been awarded two great honors this year: the 2015 Flow Control Innovation Award and Processing’s 2015 Breakthrough Product Award. The Gas-SelectX® gas menu now includes Air, Argon, Butane, Carbon Dioxide, Methane, Natural Gas, Nitrogen, Oxygen, Helium, Hydrogen, Propane, and 3-Gas Mixes. The 3-Gas mix can be any combination of 3 gases available in the gas menu (total must equal 100%).

The FT1 is a high-end flow meter, and it features a robust design. Along with today’s additions, the FT1 sports the following advanced features:

• Zero CAL-CHECK® - In Situ Calibration Validation Routine

• RS485 Modbus RTU or BACnet MS/TP - Optional Communication Protocols

• Standard USB Port – Gain Direct Meter-to-PC Connections

• FT1 View™  - Software for configuring, graphing and logging data

The FT1 was designed to be used in the most common gas monitoring applications. It is ideal for applications monitoring natural gas, air, and digester gas among many others.  In addition, with its rugged-design, the FT1 is ideal for heavy industrial applications in HVAC, paper, glass and ceramics.

*see product datasheets available to download at for specific approval information.


Founded in 1994, Fox Thermal Instruments provides a broad range of reliable, accurate and full-featured flow meters to industrial OEMs and end-user customers. The Fox management group has decades of experience in thermal flow design, application and manufacturing techniques. Our outstanding team of mechanical, electronic and software designers have helped shape the thermal mass flow measurement industry and continue to leverage new materials and technologies to improve instrument functionality, accuracy and reliability. More information on Fox Thermal Instruments can be found at


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