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Testo 350 - Exhaust Gas Analysis System






The testo 350 is a rugged, easy-to-use exhaust gas analyzer designed to meet the highest demands when it comes to carrying out precise industrial emission measurements and providing proper data administration.



The testo 350 exhaust gas analyzer is made up of two separate units


Testo 350 - Control Unit for exhaust gas analysis systems (0632 3511)

  • The testo 350 Control Unit (separate product) is used to control emission measurements. It has a clearly structured graphic display and is especially easy to use. There are four different applications in the menu to choose from: burner, gas turbine, motors and user-defined applications. The instructions on the display guide you through the measurement and make the steps leading up to the start of the measurement easier. This saves both time and hassle. The Control Unit can also be used to remote control the Analysis Box when it is not positioned at the exhaust gas pipe or measurement site. This is especially advisable when carrying out work on larger systems.
  • User-friendly application-specific menu guide

  • testo 350 Analysis Box just as easy to use when not positioned at measurement site

  • Internal memory for receiving measurement data from the Analysis Box

  • Large graphic color display, robust, industrial-type housing

Testo 350 - Analysis Box for exhaust gas analysis systems (0632 3510)

  • The testo 350 Analysis Box contains the sensor system and the electronics that are needed to perform emission measurements. The Analysis Box comes standard equipped with an O2 gas sensor. You will, however, need to connect at least one more sensor (max. six) to operate the Box. Optional sensors include gas sensors for CO, CO2, NO, NO2, SO2, H2S and CxHy.
  • Increased measurement range for unlimited measurements even when gas concentrations are higher

  • Easy-to-change gas sensors and easy access to wearing parts

  • Sealed housing with built-in impact protection for use in harsh conditions

  • Automatic processing of measuring programmes over a longer period


The increased measuring range allows you to carry out unlimited measurements even when gas concentrations are high. The increased measuring range (thinning) is automatically activated when gas concentrations are unexpectedly high. The measuring range of a selected sensor can be increased by a certain factor. An opening on the underside of the analyzer gives you access to all the relevant service and wearing parts, i.e. pumps and filters, which can easily be cleaned or replaced.  The testo 350 also has numerous diagnosis functions with easy-to-understand readings and information. The exhaust gas analyzer constantly displays the current reading.

The Analysis Box can be controlled by the Control Unit. It can, however, also be operated directly via USB, Bluetooth® 2.0 or CANCase from a PC or notebook. After the Analysis Box has been programmed, it can carry out measurements independently and save the results. It can also transfer the data directly to the Control Unit.


Conducting industrial emission measurements with the testo 350

The testo 350 exhaust gas analyzer has been specially designed for carrying out industrial emission measurements in the field. In the tab “Applications” you will find out more about:

  • Emission measurements on industrial motors
  • Emission measurements on burners
  • Emission measurements on gas turbines
  • Emission measurements on thermo processes


Also see:







Also See:



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