Precise measurement of gases and liquids

Alicat Scientific designs and manufactures flow and pressure devices.

These are used in medical and scientific instrumentation, and industrial applications, for high-precision measurement of gases and liquids.


  • Gas mass flow meters and controllers.
  • Liquid flow meters and controllers.
  • Pressure gauges and controllers.
  • Accessories and software.


  • Oil and gas.
  • Aerospace.
  • Automotive manufacturing.
  • Atmospheric and environmental testing.
  • Fibre optics.
  • Fuel cell development.
  • Industrial process control.
  • Laboratory science.
  • Vacuum deposition and solar energy.
  • Petrochemical and chemical.
  • Brewing, beverage and food production.
  • Leak testing and calibration.
  • Bioreactors/Pharma.

Alicat Scientific's all-digital product range includes mass and liquid flow meters and controllers; pressure gauges and controllers; portable flow meters; calibration standards; software and accessories.

Its instruments deliver reliable and durable measurements in applications such as OEM manufacturing and industrial controls, vacuum deposition, and environmental and atmospheric testing.

The head office is in Tucson, Arizona, with regional offices in India and China and a network of global channel partners.

Alicat operates within the Halma Environmental & Analysis sector.

Social Media

LinkedIn Twitter Facebook

There are over 200,000 Alicat flow devices in operation around the world. The company is ISO 9001:2010 certified and offers NIST traceable calibrations on all of its flow and pressure devices. Alicat devices can be ordered in an ATEX and CSA approved configuration for hazardous settings (Zone/Class 1 Division 2).

Alicat pioneered the use of laminar differential pressure flow technology, improving on traditional differential pressure metering. Its mass flow meters boast the industry’s highest turndown ratio, resulting in fast and accurate measurement over a wide flow range. Alicat’s confidence in its product reliability is evident in its Lifetime Warranty: the company is the sole mass flow device manufacturer to back its products with a lifetime commitment.

Alicat: Mass flow controllers

01 January 2012 Duration / 1:21

Alicat: Fastest flow controller company in the world

01 October 2014 Duration / 2:39

Head Office location

7641 N. Business Park Drive, Tucson, AZ 85743 USA

Tel: 888 290 6060
Tel: 520 290 6060

Tel: +86 21 604073980

Tel: +31 (0)262031651

Tel: +91 22 41248010