![MW_MCW_Pair Mass flow meter 100 SCCM](https://alicatprod.wpenginepowered.com/wp-content/uploads/2024/05/MW_MCW_Pair.webp)
Low Pressure Drop Mass Flow Meters and Mass Flow Controllers
![MWhisper_AlicatScientific Low pressure drop Whisper meters from Alicat Scientific for processes with limited pressure sources near atmospheric pressure.](https://alicatprod.wpenginepowered.com/wp-content/uploads/2024/05/MWhisper-Series.webp)
MW Series Meter
For most low pressure flow measurement
most versatile
- 0.5 SCCM- 1000 SLPM options
- 60 PSIA max operating
- ±0.6% of reading accuracy
- ±(0.1% of reading + 0.02% of full scale) repeatability
Spec Sheets
![MCW-Solo_150px Standard mass flow gas meter](https://alicatprod.wpenginepowered.com/wp-content/uploads/2024/05/MCW-Solo_150px.webp)
MCW Series Controller
For most gas control
- 0.5 SCCM- 1000 SLPM options
- 60 PSIA max operating
- ±0.6% of reading accuracy
- 0.5–100% of full scale control range (200:1 turndown)
- 30 ms control response
Spec Sheets
![MCDW-Solo_150px Mass flow controller for bi-directional flow applications](https://alicatprod.wpenginepowered.com/wp-content/uploads/2024/05/MCDW-Solo_150px.webp)
MCD Series Controller
For bi-directional flow applications
Control in both directions
- 0.5 SCCM – 500 SLPM options
- 60 PSIA max operating
- ±0.6% of reading accuracy
- 0.5–100% of full scale control range (200:1 turndown)
- 100 ms control response
Spec Sheets
Build Options for Mass Flow Meters and Mass Flow Controllers
RS-485 Serial
Analog (4-20 mA, 0-10 Vdc, 0-5 Vdc, or 1-5 Vdc)
Modbus RTU (over RS-232 or RS-485)
Modbus TCP/IP
DeviceNet
EtherCAT
EtherNet/IP
PROFIBUS
PROFINET
Downloads
Manuals
Whisper™ Series Operating ManualLatest – 10v firmware
MW Series Operating ManualLegacy – 8v firmware (2020)
MW Series Operating ManualLegacy – 9v firmware (2021)
MCW Series Operating ManualLegacy – 8v firmware (2020)
MCW Series Operating ManualLegacy – 9v firmware (2021)
Brochures
Whisper™ Series Brochure
Software/Utilities
FlowVision 2.0
Serial Terminal Utility
Serial Address Dump Utility
Serial Port Troubleshooter Utility
Python Library
![CODA coriolis mass flow meter](https://alicatprod.wpenginepowered.com/wp-content/uploads/2024/05/Coda-Series.webp)
Liquid Flow
Liquid flow controllers use either Coriolis or laminar flow technology to accurately control liquid flows across a wide range of applications.
![Dual valve pressure controller 5 PSIG](https://alicatprod.wpenginepowered.com/wp-content/uploads/2024/04/PCD-5PSIG-D_Web.webp)
Pressure Instrumentation
Alicat offers pressure controllers for use in flowing, dead-ended, or vacuum applications.
![](https://alicatprod.wpenginepowered.com/wp-content/uploads/2024/05/custom.webp)
Custom Instrumentation
Order mass flow controllers and meters custom-build to your specific application needs.
Technical Reference
Find guides, tutorials, pinout diagrams, and industrial protocol resources for your Alicat instrument.
Applications
![Aerospace SpaceX test mass flow controllers](https://alicatprod.wpenginepowered.com/wp-content/uploads/2024/04/Aerospace-SpaceX-test-1.webp)
Valve leak testing for space exploration
![Diagram explaining how gas changes moving from a higher pressure to a subatmospheric pressure.](https://alicatprod.wpenginepowered.com/wp-content/uploads/2024/04/Air-in-motion-at-1atm-thru-MC-DS2_labels1200-1024x426-1.webp)
Measuring flow at sub-atmospheric pressures
![Bioprocessing mass flow controller](https://alicatprod.wpenginepowered.com/wp-content/uploads/2024/04/Bioreactor_Bioprocess-1.webp)
Simplified leak testing for single-use bioprocessing
![Smog and environmental pollution](https://alicatprod.wpenginepowered.com/wp-content/uploads/2024/05/Smog_silhouettes_of_buildings_smokestack_environmental_pollution_urban_fumes-scaled.webp)
Measuring vent and greenhouse gas emissions
FastTrack Ordering
METER RANGES
2 SCCM - 500SLPM
CONTROLLER RANGES
2 SCCM - 100SLPM
Service and Support
Whether it is time for your instrument’s annual recalibration or your instrument needs a repair or upgrade,
you can fill out the Service Request Form below, email us, call us, or start a live chat session to get the service process started.