Alicat Scientific, the Fastest Flow Controller Company in the World - A Halma Company


Company Profile

Alicat Scientific is an ISO 9001 manufacturer of mass flow meters, mass flow controllers and pressure controllers, for gases and liquids.

Founded: 1991, Tucson, Arizona
Acquired: 2010 by Halma plc
Sector: Environmental and Analysis
Phone: +1.520.290.6060
Location: 7641 N Business Park Dr, Tucson, AZ 85743
Other Offices: China, India
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Our speed lets you focus on what matters most.

Speed means more responsive readings and more stable flow control. It means talking to a knowledgeable applications engineer within three rings and receiving highly customized instruments in just a few weeks. Speed gives you the freedom to focus on doing what really matters to you, whether that is doubling your production capacity, conducting flow audits in half the time or discovering something brand new before your competitor does.

Made in the USA since 1991

More than 100,000 Alicat mass flow and pressure instruments are in operation around the world. They help monitor the air you breathe, prepare the food you eat, build the products you buy and make the world a safer place. Our product lines include mass flow meters and mass flow controllers, pressure controllers and digital pressure gauges for gases and liquids.

Browse Gas Flow Browse Liquid Flow Browse Pressure


  • No complaints here, you guys did everything you said you would – when you said you would. And the unit is the star of the lab.–An Industrial Manufacturing Customer

  • I have been using Alicat Flow Meters, Pressure Meters and Pressure Controllers since 2006, so far I am happy with the product and the service from you guys, I feel that I am buying more than the instrument itself, I feel more like I am buying a working solution, even though this might sound cliché, is how I see Alicat, good job!!–An Appliance Manufacturing Customer

  • Thanks for such a quick response on this. I have to say you have exceeded my timing expectation; I have yet to receive a single call back from your competitors. We will keep you in mind for future flow projects.–An Automotive Manufacturing Customer

  • I wanted to tell you that I have had a wonderful experience with your company. Your customer service team is great, I got answers back quickly, and overall I am very satisfied. Whatever you are doing, keep doing it! You get an A++ for me!–An Electronics Manufacturing Customer

  • Alicat mass air flow meters have proven to be accurate, so accurate that we use them to calibrate other instruments. Another advantage over others we have used is how steady the read out is; what a difference this makes when one is trying to record values!–A Spray Painting Customer

  • I chose Alicat because of your excellent delivery time and low cost. You also have a good reputation among users.–An HVAC Customer


Flow Control Markets

Aerospace & Defense
Energy & Utilities
Food & Beverage
Process Control
Vacuum Coating

Video – What is “Fast?”