Sierra Instruments

Who we are

We understand flow is tough.  We can solve this together.
A global leader in flow measurement and control for over 45 years, Sierra Instruments designs and manufactures fluid flow measurement and control solutions for customers spanning across global industries as diverse as scientific research, oil & gas, energy management, semiconductor, clean energy, aerospace and biotech to name a few. Sierra provides state-of-the-art calibration and fast localized service.  With over 150 locations in over 50 countries, Sierra is uniquely positioned to provide innovative products and lifetime support for the leading companies of today and the growth enterprises of tomorrow.

More about us


  • Mass Flow Controllers/Meters
  • Thermal Mass Flow Meters
  • Vortex Flow Meters
  • Ultrasonic Flow Meters
  • Flow & Level Switches
  • Flow Calibrators
  • Calibration Services

Major Markets Served

  • Automotive
  • Energy
  • Environmental
  • Facilities Management
  • Life Science & Health
  • Process & Control Manufacturing
  • Oil & Gas
  • Research & Development
  • Semiconductor
  • Water/Wastewater


Sierra Instruments, Inc.

5 Harris Court Building L
Monterey, CA  93940 USA

USA Toll Free: 800-866-0200
Phone: +1-831-373-0200
Fax: +1-831-373-4402

Email: info@sierrainstruments.com,  sales@sierrainstruments.com

Where we are located