GMI Gascoseeker II

The Gascoseeker is the UK gas industry standard instrument for measuring % LEL and % volume flammable hydrocarbons, with over 20,000 instruments in use in the UK gas industry.

The two-button operation means the Gascoseeker is easy to use and operator training can be conducted quickly. The rugged design allows the Gascoseeker to be used in harsh environments.


  • Leak detection
  • Bar hole survey
  • Petroleum installations
  • Gas escape detection

SKU: gasco-18

PRICE per week
(per week)
  • Downloads

    • Specification Sheets
    • User Guides
    Download spec

    Technical Specs

    • Gas industry standard product
    • Automatic range selection
    • Simple operation – extreme reliability
    • Rugged construction (sealed to IP54)
  • GMI

    About Us


    GMI is a world leader of high quality innovative products. Investing heavily in research and development, a high percentage of this is spent on pioneering new sensor technology and the development of state of the art instruments.

    GMI is ISO 9001:2008 and ISO 14001 approved, BSI registered and a member of the council for gas detection and environmental monitoring (COGDEM).


    GMI will continue to bring industry leading innovation to the market.  GMI are constantly striving to expand the depth and breadth of the company’s products and services, and identifying new ways to deliver value to our customers.


    GMI have long term and very close relationships with customers in the oil and gas, gas distribution and transmission, petrochemical, shipping, water and sewerage, construction, telecommunications, landfill and brewing industries world-wide.  The challenges are many and varied, and have led to the manufacture of a comprehensive range of portable and fixed detection systems.


    With over 60 years experience in the service of gas detection systems, GMI have industry specialists on hand, committed to providing exceptional customer service and support throughout the UK.  Calibration and maintenance need’s can be tailored to specifically meet the most demanding requirements.

  • Delivery & Collection Information

    We use next day couriers to deliver all our test instruments.  That means it doesn’t matter if you’re 2 or 200 miles away, we can have the test equipment you need, delivered first thing, next day.

    When you have finished with the test equipment we can arrange for the same courier to collect it from you.

    We also offer a same day delivery service for when you really need the test equipment urgently.