Fox Thermal FT1 Mass Flow Meter
Starting at $2,220.00

Not in stock. Usually ships in 3-4 weeks [?]

Need Help? Call a Flow Engineer 1-800-884-4967

We're open Mo-Th 8am to 5:30pm. Fr 8am to 5pm ET

A completed FT1 application data form is required to purchase this meter. We will contact you about your order.


  • Measures gas flow in choice of unit
    • SCFM, NM3/HR, LBS/HR, KG/HR, & more
  • 15 to 15,000 SFPM flow range
  • Turndown: up to 1000:1; 100:1 typical
  • DDC-Sensor technology (Direct Digitally Controlled)
    • Responds to changes in process variables
    • Platform for calculating accurate gas correlations
  • Gas-SelectX gas selection menu, field selectable
    • Multiple pre-programmed gas calibrations
  • Rotatable probe allows ±180 degree swivel
  • USB port to connect to a PC
  • NEMA 4 enclosure, all welded 316SS wetted materials
  • Approved for FM/FMc, ATEX, IECEx
  • CE Mark

The Fox Thermal FT1 Mass Flow Meter with its DDC-Sensor and advanced correlation algorithm provides an accurate, multi-gas-capable thermal gas flow meter. Many customers need a fast solution to their monitoring needs. For these cases, FOX has developed the Gas-SelectX calibration gas menu feature for the Model FT1 flow meter. Gas-SelectX allows the user to choose from a menu of several common gases or gas mixtures for their application. Available gases are Air, Argon, Carbon Dioxide, Methane, Natural Gas, Nitrogen, Oxygen, Helium, Propane, Methane/Carbon Dioxide/Nitrogen Mixes, and more coming.

The user can program the percentages of methane, carbon dioxide, and nitrogen to achieve the perfect mix for their application. The meter's proprietary algorithm allows the user to switch the calibration gas in the field, as needed. Whether you need to measure natural gas or air, CO2 or digester gas, the FT1 brings these options and more to the user with a quick push of a button.

Service Options

Fox Thermal Oxygen Service Prep
Have FT1, FT2 or FT3 cleaned and bagged for oxygen service


Fox Thermal USB Cable
USB Cable, A-male/mini USB-B male

Power Supplies

Fox Thermal DC Power Supply
24VDC power supply with DIN mounting rail


Please consider these optional accessories.

Fox Thermal Certificate of Origin
Chamber of Commerce proof of origin
Fox Thermal Teflon Ferrule Kit
Teflon ferrule kit for FT1 insertion mass flow meter, 60 psi max.
Fox Thermal Adapter Fitting
3/4" NPT/M20 x 1.5 Adapter


This product can be used in the following applications:

Application Notes

Here's how some of our customers used this product.

Industrial Natural Gas Usage

The Background: Our customer, a manufacturing facility, wants to monitor the amount of natural gas flowing to a large oven used in their manufacturing process as a way to monitor the efficiency of that piece of equipment.

The Problem: The meter is going to be installed outside in the cold and heat.

The Solution: We suggested the Fox Thermal FT1 Mass Flow Meter which was designed for common gas monitoring applications like compressed air, oxygen and of course natural gas. The FT1 includes an LCD display that dims automatically at -4˚F to prevent damage. Pulse output is sent to a remote display for viewing totalization inside the building.