Why Choose Resmar

  • Price Match Guarantee
  • Manufacturer Trained
  • 30 Years' Experience
  • Free Technical Support
  • On Site Servicing
  • We Can Service All Our Products
  • National Coverage
Resmar 25th anniversary

Top sellers

GMI Distributor: Manufacturer Trained Supplier of GMI Safety Products.

Here at Resmar we are proud to be able to offer our customers products from the GMI range. Their detection and monitoring solutions are extremely well designed, field tested and used the world over by professionals who demand the best performance and reliability in what are often extremely dangerous environments.

Showing 1 - 5 of 5 items
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    £ 1,820.00

    GMI is well known for their high quality portable gas monitoring equipment the world over.Their commitment to excellence and reliability in the field of gas safety equipment continues to set the standard in a diverse range of industries. Rugged High Construction Qualify Based Polypropylene Case Sealed to IP54 Probe Mounted Semi-Conductor Sensor Automatic...

    £ 1,820.00
  • Quick view
    £ 1,395.00

    The GMI gascoseeker 2–500 is a highly accurate and reliable while at the same time low cost gas detection instrument which features an integral pump with flowpath protected by a water filter. 2 Button Operation Polypropylene Case Fully IP54 Compliant Backlit LCD Fully ATEX Approved Weighs 1.7kg Dimensions - 180mm x 95mm x 105mm

    £ 1,395.00
  • Quick view
    £ 1,830.00

    The GMI Oxy gas 500 and Oxy gas P500 is a flexible combination instrument designed specifically for leak detection and purging or inerting operations. 2 Button Operation Durable and Reliable Polypropylene Case Compliance with IP54 Backlit LCD Weighs 1.7kg Dimensions - 180mm x 95mm x 105mm

    £ 1,830.00
  • Buy today and get First service free of charge** The GMI PS200 series gas detection unit is part of the GMI personal surveyor range. Single Button Operation Visual, Audible and Vibrating Alarms Simple User Interface Solidly Constructed Weighs 230g

    £ 300.00
  • Here at Resmar we are proud to be able to offer our customers the GMI range of safety monitoring equipment. Simple to Operate Highly Intuituve User Interface Easy-to-Read Backlit LCD Display Rugged Impact-resistant Casing Highly Visible LED Alarms Weighs 1.35Kgs Dimensions: 180mm x 95mm 100mmPrice available on request Please contact Resmar direct to...

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GMI is a company with over 60 years experience in the service of gas detection systems covering an extremely wide range of industrial applications in many industries including: 


Brewing, Car Park Monitoring, Chemical, Construction, Defence, Decommissioning, Electricity, Fire/Hazmat, Food/Beverage, Gas Distribution, Industrial Safety, Landfill / Underslab, Marine, Nuclear, Oil/Gas, Petrochemical, Pulp & Paper, Refining, Steel, Telecoms, Transportation, Water/Waste.


GMIS dedicated team of service professionals offer the highest level of advice, after sales and on site support with a customized range of service contracts.


Their dedicated Milton Keynes Service & Calibration Division supplies repair, calibration and maintenance services around the clock, 24-7 to guarantee their customers the best possible performance and reliability from their monitoring and detection equipment.



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