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Low Flow Mass Flow Controller with Touchscreen


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  • Linearized Flow Output 
  • +-0.5% Full Scale Accuracy, or +-2% Reading *
  • 20-30 Millisecond Response time
  • Back Pressure Compensation up to 100 psig
  • Temperature Compensating
  • Microcontroller Design for Customization

  *See flow specifications below

Lead Time

We offer discounts for orders of 25 units or more. Please contact our sales department for a quote. 

1‐5 Units2-3 Weeks
6 Units or MoreConsult Sales

Kelly Pneumatics, Inc. offers a reduced cost, single or dual-valve design, Mass Flow Controller for low volume flow applications. The unit is calibrated for up to +-0.5% accuracy (full scale) for flow rates of 0-10 lpm. For greater accuracy, the unit can be customized to +-2% of reading. This mass flow controller can also adjust for back pressures of up to 100 psig, as well as compensate for changes in gas temperature. The controller can also be customized for response times of up to 20 milliseconds (full scale). This unit can accurately control numerous gases, including Air, Oxygen, Nitrogen, Argon, and many more.

Further customization is possible due to an internal microcontroller. Change your response time, control range, or incorporate additional control or feedback signals, with customized software, modified to meet your most demanding flow control applications.


Input Pressure 0 to 100 PSI (standard)
500 psig (custom)
Gas/Back Pressure 0 to 100 PSIG
Flow Output Accuracy +/- 1% Full Scale accuracy, or 0.05 lpm, whichever is greater.
+/- 2-3% of Reading is available with custom calibration.
Results dependent on application specifications
Response Time Typical: 50-80 milliseconds
Custom: 20-30 milliseconds
Max Flow Rate 10 slpm @ 100 psi Differential Pressure
Connections 1/8″ or 1/4″ FPT Supply and Outlet Ports
Weight 1.0 lb
Power Required 12 or 24 VDC (Wire Leads); 110 VAC (Turnkey)
Current Required 90 mA to 180 mA
Control Signal 0-5 volts, 0-10 volts or 4-20 mA
Feedback Signal 0-5 or 0-10 volts
Manual Control Adjustable Potentiometer
Operating Temp. 32-150 °F or 0-65 °C
Filtration 40 Micron Recommended
Wetted Materials Cold rolled stainless steel w/ electroless
nickel plating, brass and 304 stainless steel.

Wiring Details


* Omitted for Turn-Key Power Supply option

Terminal Number1*234
Lead Wire ColorBrown WhiteBlue Black
FunctionPower Supply VoltageControl SignalGroundFeedback Signal



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Purchasing Information

After completing your order, you will receive an email confirmation, as well as a shipment tracking number when your order has shipped.

Payment: We accept PayPal Account payments and most major credit cards. Phone orders are also accepted.

Refund Policy: Give it a try! We offer a 30-Day refund period for all orders. If you ship back the order and confirm your return is in transit within 30 Days of receiving the order, we will refund the cost of units ordered. This refund does not include parts that are damaged by you or missing components. All shipping costs are non-refundable unless the package was incorrectly shipped or you received defective products.

Cancellations: You can cancel your order for a full refund If your order hasn’t shipped. Contact us and submit your order number to request a cancellation.

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