The Team




Our Goal

Heating is colloquially considered a luxury, and more in a country like Mexico, where the heat is taken as a daily. But when it comes to specialized industrial processes or performance and production in greenhouses, heating is not a luxury, it is an absolute necessity.

And as part of an industrial process, not a question that can be left to chance, is a matter of vital importance that may mean increasing the profit margin of a company, or total loss of investment in it.

Understanding this fundamental need, in Van Triest Engineering Group works to give the customer not only products of the best brands with proven quality, but also the necessary technical support for users who decide not see your confidence in your investment risk.

The mission of Van Triest Engineering is to provide the best product, best support and better care.



High-end O2 measuring

Fully automatic calibration with ambient air

applicable up to 1400 °C

TUV approval for emission monitoring

Easy to use and low-maintenance


The LT1 is an universal useable, microprocessor-based O2 analyser for direct measurement of O2 concentration of gases in hyperstoichiometric ranges  ( λ >1). In connection with the Lambda probe LS1 it can be used in:

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±0,2 Vol. % O2 after balancing on air value 21 % O2
(with Lambda-probe LS1)

Setting time:

<20 s on  90 % of final value (T90)
(with Lambda probe LS1 type 650 R 0001 and 450 mm MEV)

Failure impact
Deviation by temperature

1 % of measurement value / 10 K housing temperature Lambda probe LS1,
temperature compensation optional

Failure impact
Deviation by pressure

1,3 % of measurement value / 10 mbar pressure change / pressure compensation optional

Ambient temperature
- operation
- transport and storage


Supply voltage

230V AC and 115 V AC
+10% / -15%, 48Hz...62Hz
To be used in grounded network lines only!


0,01% over the whole range

Time for being ready with LS1

1...2 hours after "POWER ON"

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The LT1 is an universal useable, microprocessor-based O2 analyser for direct measurement of O2concentration of gases in hyperstoichiometric ranges  ( λ >1). In connection with the Lambda probe LS1 it can be used in:

  • Combustion exhaust gases
  • Industry exhaust gases
  • Oven atmospheres
  • Process gases


  • Linear probe signal (D/C [mA] with fixed physical zero-point
    No special test gases needed, automatic calibration with ambient air (21 Vol. % O2)
  • Preciseness of measurement better than 0,2 Vol. % O2 over the whole range of measuring 0 ... 21 Vol. % O2
  • No gas conditioning needed
  • No reference gas needed
  • Setting time <20 s on 90%-value (T90) with gas extraction device (GED) , 450 mm long
  • No influence of measuring  temperature on preciseness of measuring
  • No temperature control of ZrO2-measuring cell needed
  • Automatic adaptation of cell temperature on cell internal resistance (Compensation of aging)
  • Measuring gas temperature up to 800 °C with metal extraction or up to
    1.400 °C with ceramic extraction
  • Means no ignition source inside flue gas channel – TUV approval existing
  • Intermittent operated measuring gas pump with definition of optimal pump running time
  • Easy to handle
  • Low-maintenance

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Housings and types

Display and operation


Wall mounting housing


Gas extraction device (GED) 

19“ panel installation housing

Remote display

Gas extraction heating

Mounting plates

Interface modules RS232 / RS422

Probe-installation-fitting (PIF)

Extensions for probe connection cable

Outside-isolation / Flange seal etc.

The Lambda Transmitter LT1 comes in various types according to it’s functionality and it’s areas of use. In cooperation with you, we can offer you a fitted solution according to your application and requirements.

If you want to learn more about the Lambda Transmitter LT1 please download the PDF on the download tab or contact us at , to help you to select the optimum solution for your application.

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