512-948-7089 sales@fathoms.com

Welcome to Fathoms Technology

Fathoms Technology is a manufacturer of high quality, competitively-priced gas mass flow meters and flow controllers for a wide range of applications. Our meters utilize thermal technology to measure mass flow directly requiring no corrections for pressure or temperature. Fathoms products are designed to be customer friendly with on-board backlit display and set point control. Meters provide better than 1% accuracy referenced to NIST traceable primary standards. Fathoms products help thousands of customers meet their production and safety goals. Contact us with your application details and we will be glad to help you meet your goals.

Calibration Services

With decades of calibration experience,
our expert technicians provide high quality calibration services
for all types of flow meters and controllers.


We utilize all NIST traceable positve displacement primary standards with a rated accuracy of 0.2% of reading.


Turnaround time is 1 week. Expedites available.


Our technicians can visit and perform calibration services at your location.


Calibration, cleaning, and repairs – we do it all.


We were very satisfied with the calibration services that FATHOMS TECHNOLOGY provides! Our meters are performing at its best right now.

J. Roberts

Technical Svcs.

FATHOMS TECHNOLOGY has the best available air flow meters and controllers available. Nobody else comes close quality-wise!

H. Aldrin

Quality Control Mgr.

The performance of the GRHF Air Flow Series is impressive to say the least. We’re not looking back at our previous provider.

F. Zimmerman

QC Engr.

This is perhaps the best-grade airflow and gas meters and controllers in the industry today. Bar none.

T. Embers