A global pioneer in the design and manufacturing of flow instruments for 45 years, Sierra Instruments provides solutions for customers in a wide variety of global industries, including scientific research, bioprocessing, semiconductor, clean energy, oil & gas, energy management, and aerospace to name a few. With over 150 locations in over 50 countries, Sierra is uniquely positioned to provide innovative products and support for the leading companies of today and the growth enterprises of tomorrow.

 Sierra Instruments provides state of the art thermal mass flow meters (in-line and insertion), Vortex meters (in-line and insertion), Ultrasonic flow meters, and MEMS based flow meters and controllers with zero sensor drift.

       TM100 Series     Economical Thermal Mass Flow Meters  Quick Delivery

    QuadraTherm 780i  Highest Accuracy (0.5%)  Built-in Flow Conditioning (1-Diameter Up and Zero Down)

  SmartTrak 100 Premium MFC and MFM  10-Point NIST Calibration  (0.5% Full Scale)

  BioTrak 645i/745i Wastewater MFM  Field Selectable for Air, Methane, or Digester Gas

  RedySmart  Ultimate OEM MFC  Lifetime N0-Drift Sensor  Perfect for OEMS's

  FlatTrak 780S-UHP Perfect for Ultra High Purity Gas Custody Transfer

  InnovaMass 240S Vortex Multivariable Flow Meters

  BoilerTrak 620S-BT  Optimized for Natural Gas and Propane Measurement

  InnovaSonic 203 Clamp-On Ultrasonic Water Flow Meter

  qMixGas Mixing Software Creates Custom Gas Mixture in the Field

  InnovaSwitch Flow Switch for Liquid of Gass Flow Detection

  CalTrak 800 Primary Gas Calibration Standard (0.15% of rate)