Sierra Instruments was founded in 1971 and is known for the design & manufacture innovative high-performance fluid flow measurement and control instrumentation for nearly any gas, liquid and steam application spanning across global industries as diverse as scientific research, semiconductor, wastewater treatment, iron and steel, clean energy, aerospace and biotech to name a few.

Kansas, Nebraska, Iowa & Western Missouri

Flow Meters & Controllers

Gas - Liquid - Steam

Olathe, KS  –  (913)538-5526

Des Moines, IA  –  (515)309-4022

Lincoln, NE  –  (402)817-4336

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Thermal Mass Flow Meters

Applications Include:  Process Gas Measurement and Control, Food Processing, Fermenters & Bioreactors, Leak Testing, Ice Cream Aeration, Brewery/Beverage Process, Hydrogen Bleed-Off, Specialty Lamp Manufacturing, etc.

Applications Include: Water & Waste Water Flow, HVAC Water, Irrigation Water, Thermal Energy Metering, etc.

Gas Mass Flow Controllers & Meters

Vortex Mass & Volumetric Flow Meters

Ultrasonic Transit-Time Flow Meters


World's Most Accurate

Thermal Mass Flow Meter


Industrial In-Line

Thermal Mass Flow Meter


High Performance

Thermal Mass Flow Meter



Thermal Mass Flow Meter


Industrial Insertion

Thermal Mass Flow Meter

240 In-Line

Multivariable Vortex Meter

241 Insertion Multivariable Vortex Meter

Innova-Sonic 203 Economical

Innova-Sonic 210i Portable

Innova-Sonic 205i High Performance

Premium Digital

Meters & Controllers


Meters & Controllers


Meters & Controllers

Applications Include:  Compressed Air, Natural Gas or Propane in Boilers, Aeration Basin Air Lines, HVAC Applications, Stationary Combustion Fuel Meter, Landfill Gas Meter, Ejector Off Gas Meter, etc.

Applications Include:  Saturated Steam meter, Superheated Steam Meter, Multiparameter Vortex Flow Meter, Multivariable Steam Custody Transfer Flow Meter, Gas Flow Meter, Liquid Flow Meter, etc.

Liquid Switch

Flow & Level

Flow Conditioners

Gas Flow Calibration Systems

Serving Kansas, Missouri, Nebraska, Iowa, Kansas City, Topeka, Manhattan, Salina, Emporia, Wichita, Fort Scott, Coffeyville, Dodge City, Hays, Branson, Joplin, Springfield, Sedalia, St. Joe, Omaha, Lincoln, Hastings, Grand Island, North Platte, Scotts Bluff, Council Bluffs, Des Moines, Ames, Iowa City, Cedar Rapids, Davenport, Mason City, Waterloo, Sioux City and Fort Dodge