For safety reasons, the density of the medium of gas insulated SF6 heavy duty circuit breakers must be continually monitored. Through its immense experience combined with innovative products, Trafag has established itself as market leader.


  • High voltage technology.
  • Mid voltage range technology.
  • Switching diagnostics.

Trafag density measuring appliances and monitoring devices are extremely reliable and require no maintenance due to proven construction methods.

Two main types of measurement and monitoring devics can be offered.

Electromechanical Density Devices:

Continual investment in Research and Development combined with close cooperation with our customers has established Trafag as the market leader in density measurement.

Two characteristics of our products are:

  • high quality.
  • minimal failures.

For further information regardless of standard solutions or customised developments,we can give you the advice you require.


We are Marktechnical

Marktechnical B.V. an advanced trading company which delivers high quality measuring and control instruments for industrial and shipbuilding applications. Do you need to control or measure pressure, temperature, level, force, angle, flow, humidity, time or do you need a specific custom-made product; we have the solution!