GMI Gasurveyor 500 series

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Special Offer

On All Orders over £100 and £500

● Spend over £100.00 and receive a FREE Single person 1st Aid Kit and ERGO Safety Glasses

● Spend over £500.00 and receive 2 x FREE 1st Aid Kits & 2 pairs of Safety Glasses

GMI Gasurveyor 500 series

£1,750.00ex. VAT £2,100.00 inc. VAT

Key Features:

  • Range of 4-button and 2-button instruments
  • ATEX & MED certified
  • Auto range LEL/Vol. %
  • 4-bButton series dual mode with datalogging
  • Up to 4 gases
  • Robust durable case
  • Auto calibration available

Gasurveyor 511 – LEL & Vol.
Gasurveyor 512 – ppm, LEL & Vol.
Gasurveyor 521 – LEL & Vol., O2
Gasurveyor 522 – ppm, LEL & Vol., O2
Gasurveyor 523 – LEL & Vol., H2S
Gasurveyor 524 – ppm, LEL & Vol., H2S
Gasurveyor 525 – LEL & Vol., CO
Gasurveyor 526 – ppm, LEL & Vol., CO
Gasurveyor 531 – LEL & Vol., O2, H2S
Gasurveyor 532 – ppm, LEL & Vol., O2, H2S
Gasurveyor 533 – LEL & Vol., O2, CO
Gasurveyor 534 – ppm, LEL & Vol., O2, CO
Gasurveyor 536 – ppm, LEL & Vol., H2S, CO
Gasurveyor 541 – LEL & Vol., O2, H2S, CO
Gasurveyor 542 – ppm, LEL & Vol., O2, H2S, CO


The GMI Gasurveyor 500 Series is the most flexible range of gas detectors available today. By simple selection of hardware and software options, the instrument can be readily configured to suit your exact application.
Offering highly accurate and reliable instrumentation in an extremely robust, anti-static case, the Gasurveyor 500 Series measures gases common in many applications.

Any combination of flammable gas from parts per million (ppm) through Lower Explosive Limit (LEL) to percent volume, oxygen, carbon monoxide and hydrogen sulphide can be selected to ensure that your exact requirements are met.
All of the Gasurveyor 500 Series are dual mode instruments, making them suitable for both surveying work and confined space.



Additional information

What's included for the price?

– Monitor as specified
– NiCad rechargeable battery
– harness
– Hex driver
– 1.5m tubing and operator handbook
– G500 carrying case
– 20 cotton filters
– 35cm probe solid end , probe handle assembly
– Sample line adapter


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Monitor details

Spares and accessories

Calibration gas