Detection, Protection, Innovation

Product Filter

Gas Distribution

GMI is one of the world’s leading providers of gas detection equipment to the gas distribution and utilities market.

The Gasurveyor range of instruments are the gas industry standard for measuring % LEL, % Volume and PPM flammable hydrocarbons, with over 20,000 instruments in use in the UK gas industry.

View All Gas Distribution Products

Industrial Safety

PS200 Series (4-Gas) and PS500 (5-Gas) range of portable monitors are lightweight, robust, simple to operate and suitable for use in a variety of confined space and industrial applications.

These monitors can detect a range of gases including oxygen, combustibles, hydrogen sulphide and/or carbon monoxide.

View All Industrial Safety Products

Fixed Systems

GMI has the capability to design and develop customised fixed gas detection systems to comply with individual customer requirements.

Benefits of a Fixed Systems maintenance contract:

  • Scheduled planned preventative maintenance
  • Reduced down time to system faults
  • Reduced cost of replacement spare parts
  • Compliance with relevant legislation and guidelines

View All Fixed Systems Products


We offer a comprehensive range of certified products to suit all gas detection marine applications.

This feature rich range of instruments are suitable for all marine applications including:

  • Confined space monitoring
  • Cargo monitoring
  • Inerting

View All Marine Products

Book your annual PS200 service now!

Our Milton Keynes Service Centre is now fully equipped to carry out service, calibration, maintenance and repair of the PS200 Series portable gas detector.

We can provide:

  • Quick turnaround of equipment
  • Trained industry specialists
  • Dedicated customer service advisors
  • 100% spare parts availability
  • Competitive pricing
  • Complete equipment management solutions
  • Automatic software updates

View All Service & Calibration Options

Worldwide Distributor Network

We believe that developing and supporting our international distribution network will play a key part in our global growth strategy.

Equipment installed overseas is fully supported around the globe by a network of industry specialist distributors, giving total assurance that your gas monitor is receiving the most comprehensive maintenance program available.

Please click below to contact your Territory Manager, who will provide you with the details of your local distributor.

View All Territory Managers

Featured Product

Utilising the latest infrared gas detection technology in a robust and reliable design, the Gasurveyor 700 (GS700) is a highly configurable instrument with leading performance and a user-friendly interface which makes it the perfect choice for all gas utility applications.


Read more about the GS700

Latest News

  • Read Simtronics white paper on Optical Flame Detection

    Posted on 5th July 2015

    Fire detection is based on fire’s various properties (rise in temperature, smoke emission, and optical radiation emission).

    Read more...

  • Book your annual PS200 service now!

    Posted on 29th June 2015

    Our Milton Keynes Service Centre is now fully equipped to carry our service, calibration, maintenance and repair of the PS200 Series portable gas detector.

    Read more...

  • GMI is exhibiting at World Gas Conference

    Posted on 27th May 2015

    This event, to be held from 2nd-5th May in Paris, represents a tremendous opportunity to network and strengthen relationships with gas industry customers world-wide.

    Read more...

View All News Items

Upcoming Events

  • We currently have no upcoming events.
    Please check back later.

View All Upcoming Events

Back to Top