Combination measuring devices for gas supply with integrated ethane detector


The EX-TEC HS 680 is perfect for detecting leaks in underground natural gas pipelines. Its multi-array sensor suite includes infrared for pinpointing the exact location of leaks along the pipeline. This system avoids unnecessary and costly excavations. Its optional integrated ethane-C-2H6 detector provides easy verification whether the gas leaking from the underground is a natural gas product from the pipeline or simply a natural occurring biogas (i.e., marsh or swamp gas).

Precision leak pinpointing is achieved using the optional oxygen-O2 sensor. The O2 sensor indicates the minimum O2 level while simultaneously measuring the maximum methane-CH4 level. This "minimum" with its smaller diffusion area in conjunction with the maximum methane indication provides easy pinpointing of complex leaks.



  • Operated by jog dial, function keys and menu navigation
  • Large matrix LCD backlit display
  • Rechargeable or Alkaline batteries
  • Rapid charging in only 4-hours
  • Docking station (charges battery) available
  • PC communications via USB
  • Personal gas warning for toxic, asphyxiant and explosive gases
  • Gas Network leakage surveys
  • Purging gas pipelines
  • Measuring gas in bar holes
  • detecting flammable gas leaks in houses


Designed to be both simple and easy to use, whilst not compromising on performance, all functions are clearly shown by logical pictorial representations of the measuring application.
One 'jog dial' and 3 buttons control all the many possible measuring modes of this versatile gas measuring, monitoring and warning instrument.

More Precise Gas Leak Pinpointing

If a gas leak has dispersed over a wide area, it is often difficult to precisely pinpoint the leak source.
Often the gas gathers under the surface and spreads over long distances.
The oxygen content decreases nearer the source of a leak and the methane gas level increases.
By utilizing the optional oxygen sensor the user can measure and display the oxygen minimum at the same time as the methane maximum. This minimum oxygen level, with its smaller diffusion area, makes it easier to locate complex leaks more precisely.