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Sierra Instruments is experiencing longer lead times due to the transition to a new ERP Software System. Please note that your online order lead times will be extended by a minimum of 5 days during this period. Should you have any questions, please contact Customer Support at 831-373-0200.

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Enlarge Premium Mass Flow Controllers

SmartTrak®100

Premium Mass Flow Controllers

  • Direct mass flow with thermal technology +/- 0.5% full scale accuracy
  • True multi-gas digital mass flow controller
  • View and change every aspect of the instrument
  • Small footprint at 50 slpm ideal for OEMs
  • 10-point NIST calibration on primary standards
$1999 BUY NOW
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Enlarge Premium Mass Flow Meters

SmartTrak®100

Premium Mass Flow Meters

  • Direct mass flow with thermal technology +/- 0.5% full scale accuracy
  • True multi-gas digital mass flow controller
  • View and change every aspect of the instrument
  • Small footprint at 50 slpm ideal for OEMs
  • 10-point NIST calibration on primary standards
$1673 BUY NOW
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Enlarge Economical Mass Flow Controllers

SmartTrak® 50

Economical Mass Flow Controllers

  • OEM pricing with digital high-performance
  • Small footprint at 50 slpm ideal for OEMs
  • 5-point NIST calibration on primary standards
  • Large display to view flow information easily
  • Choice of construction in aluminum or 316 stainless-steel
$1428 BUY NOW
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Enlarge Economical Mass Flow Meters

SmartTrak® 50

Economical Mass Flow Meters

  • OEM pricing with digital high-performance
  • Small footprint at 50 slpm ideal for OEMs
  • 5-point NIST calibration on primary standards
  • Large display to view flow information easily
  • Choice of construction in aluminum or 316 stainless-steel
$1377 BUY NOW
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Enlarge Economical Analog Mass Flow Meter

TopTrak® 820

Economical Analog Mass Flow Meter

  • Proven gas flow measurement with affordable OEM pricing
  • For fast delivery, buy online, next-day shipment
  • Save money with volume discounts
  • Read results easily with large tiltable display
  • Easy drop-in replacement with compact size
  • Available in economical nylon, stainless steel and aluminum
$867 BUY NOW
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Enlarge Economical Nylon Mass Flow Controller

MassTrak® 810

Economical Nylon Mass Flow Controller

  • Record flow measurement at affordable OEM pricing
  • Save money with volume discounts
  • Read results easily  with large LCD readout
  • Accurate mass flow control even with low pressure drop
  • Save time with built-in local setpoint control
$1715 BUY NOW
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Enlarge OEM Mass Flow Meters

RedySmart®

OEM Mass Flow Meters

  • Ultimate OEM MFC-modular, compact footprint, connect power cable & communication system
  • MEMS sensor stability- Lifetime no-drift sensor warranty
  • Direct mass flow with thermal technology- no temp or pressure compensation
  • Precision electromagnetic valve control
  • Competitive OEM pricing- Cost-effective solutions
$1177 BUY NOW
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Enlarge OEM Mass Flow Controllers

RedySmart®

OEM Mass Flow Controllers

  • Ultimate OEM MFC-modular, compact footprint, connect power cable & communication system
  • MEMS sensor stability- Lifetime no-drift sensor warranty
  • Direct mass flow with thermal technology- no temp or pressure compensation
  • Precision electromagnetic valve control
  • Competitive OEM pricing- Cost-effective solutions
$1706 BUY NOW
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Enlarge Compact Meters

RedyCompact®

Compact Meters

  • Direct Mass Flow, not volumetric, for highest accuracy & repeatability
  • High-precision MEMS technology: No-drift (lifetime warranty) CMOS sensor
  • Compact Footprint for easy drop in replacement to VA meters
  • Regulate flow with high resolution manual setpoint
  • Battery operated, with large, easy-to-use touchscreen display, automatic screen adjustment (0°/90°/180°/270°)
$815 BUY NOW
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Enlarge Compact Manual Regulators

RedyCompact®

Compact Manual Regulators

  • Direct Mass Flow, not volumetric, for highest accuracy & repeatability
  • High-precision MEMS technology: No-drift (lifetime warranty) CMOS sensor
  • Compact Footprint for easy drop in replacement to VA meters
  • Regulate flow with high resolution manual setpoint
  • Battery operated, with large, easy-to-use touchscreen display, automatic screen adjustment (0°/90°/180°/270°)
$923 BUY NOW
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Enlarge Economical Ultrasonic Mass Flow Meter

InnovaSonic®203

Economical Ultrasonic Mass Flow Meter

  • High performance at an affordable price
  • Simply clamp-on outside of pipe for easy set up
  • Save time with no pipe cutting or process shutdown
  • For fast delivery, buy online, next-day shipment
$2170 BUY NOW
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Enlarge Ultrasonic Liquid & Thermal Energy/BTU Flow Meter

InnovaSonic®207i

Ultrasonic Liquid & Thermal Energy/BTU Flow Meter

  • High accuracy transit-time ultrasonic technology
  • Software apps for ease of installation & diagnostics
  • Optimized for thermal energy/BTU measurement
  • Clamp-on sensors, no pipe cutting, no shutdown
  • Real-time liquid density compensation
  • Upgrade meter firmware and software in the field
  • Part of Sierra's Big-3 iSeries family of flow meter technologies, Learn more >
$3630 BUY NOW
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Enlarge Ultrasonic Portable Mass Flow Meter

InnovaSonic® 210 Ultrasonic Portable Flow Meter

Ultrasonic Portable Mass Flow Meter

  • Easy setup in five minutes or less
  • Portable clamp-on transducers measure liquid flows nearly anywhere
  • Save time with no pipe cutting or process shutdown
  • For fast delivery, buy online, next-day shipment
  • Boiler MACT certified for area source boilers (40 CFR 63, subpart JJJJJJ) and for major source boilers (40 CFR 63, subpart DDDDD) Learn More
$6850 BUY NOW
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Enlarge Highest Accuracy Insertion Mass Flow Meters

QuadraTherm® 640i

Highest Accuracy Insertion Mass Flow Meters

  • Achieve high accuracy +/- 0.75% of reading
  • Eliminate drift with patented DrySense™ sensor
  • Validate in the field for easy in-situ calibration
  • Use qMix software to easily change gas composition in the field and retain accuracy Download Flare Gas Mass Measuring Tech Note
  • Backed by lifetime sensor warranty
  • Boiler MACT certified for area source boilers (40 CFR 63, subpart JJJJJJ) and for major source boilers (40 CFR 63, subpart DDDDD) Learn more > 
  • Part of Sierra's Big-3 iSeries family of flow meter technologies Learn more >
  • Meet EPA rule 40 CFR 63 for flare gas measurement at ultra-low flows down sfps (0.03 smps) with QuadraTherm® qMix RealTime Flare Measurement System (FMS)
$3643 BUY NOW
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Enlarge Insertion Multivariable Vortex Mass Flow Meter

InnovaMass® 241i Insertion

Insertion Multivariable Vortex Mass Flow Meter

  • Insertion probe up to 72 inches (2M); optional hot tap
  • Ideal for saturated or superheated steam, gas, and liquid 
  • Volumetric flow rate or mass flow 
  • Multivariable for five measurements in one device
  • Complete suite of digital communications
  • A variety of Apps for ultimate field flexibility
  • Buy online for next day shipping
  • Certified for Boiler MACT measurement meeting EPA regulations for area source boilers (40 CFR 63, subpart JJJJJJ) and for major source boilers (40 CFR 63, subpart DDDDD), Learn more > 
  • Part of Sierra's Big-3 iSeries family of flow meter technologies, Learn more >
$2410 BUY NOW
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Enlarge Vortex Flow Meters

InnovaMass® 241S Insertion

Vortex Flow Meters

  • Insertion probe for pipes and ducts up to 72 inches (2M); Optional hot tap
  • Highly reliable with no moving parts
  • Loop power option available
  • Rugged, long-lasting design for the industrial applications
  • For fast delivery, buy online, next-day shipment
$6206 BUY NOW
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Enlarge Fast-Response Insertion Mass Flow Meters

FastFlo™ 620S

Fast-Response Insertion Mass Flow Meters

  • Increase efficiency with fast response time within 200 milliseconds
  • Optimized air, nitrogen, and inert gas measurement for 1, 2, 3, 4 inch sch. 40 pipe sizes
  • Wide flow ranges from 0 to 42,000 scfh
  • Easily install in the field or retrofit
  • Fast delivery—ships next-day from stock
$1867 BUY NOW
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Enlarge Insertion Mass Flow Meters For Boilers

BoilerTrak™ 620S-BT

Insertion Mass Flow Meters For Boilers

  • Optimized natural and propane measurement for 1, 2, 3, 4 inch sch. 40 pipe sizes
  • Wide flow ranges from 0 to 42,000 scfh
  • Easily install in the field or retrofit
  • Certified for GHG measurement meeting EPA (40 CFR Part 98)
  • Boiler MACT certified for area source boilers (40 CFR 63, subpart JJJJJJ) and for major source boilers (40 CFR 63, subpart DDDDD) Learn More. 
  • Fast delivery—ships next-day from stock 
$1867 BUY NOW
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Enlarge Thermal Flow Switch for Gases and Liquids

InnovaSwitch™ Flow Switch

Thermal Flow Switch for Gases and Liquids

  • Ultra-sensitive with fast response time
  • Ideal for industrial pump protection
  • Buy online, next-day shipment
  • 1-year warranty
  • Unique high temperature up to +458°C
$1300 BUY NOW
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