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340 Flue Gas Analyser For Use In Industry

Testo 340 Flue Gas Analyser for use in industry perfect for commissioning, service & maintenance work; enabling test measurements on industrial burners, stationary industrial engines, gas turbines & thermal processes.

Part Number:
0563 9352

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2748.00 incl. VAT)
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Testo 340 Basic Flue Gas Analyser Kits

Built for for industrial emission measurements and more!

The compact, easy-to-operate testo 340 emissions analyser is the right tool for many different emission measurements.  The compact design and the reliable technology make it the ideal measuring instrument for commissioning, service and maintenance work; enabling test measurements on industrial burners, stationary industrial engines, gas turbines and thermal processes.  The unique measuring range extension allows unrestricted measurements to be carried out even at high gas concentrations.

The testo 340 is equipped with an O2 sensor as standard.  Three further gas sensors can be configured individually, in order to be able to adapt the instrument optimally to the respective measurement task.  The instrument can also be operated remotely from your Android Smartphone or tablet using the free App.

Precise and versatile technology for working out in the field.  The testo 340 comes standard-fitted with an O2 sensor, and four more sensors (CO, NO, NOlow, NO2 or SO2) can be configured individually, allowing you to customise your analyser to suit your individual demands.

Testo 340 Key Features:

  • Easy to use
  • Compact design
  • Can measure CO, COlow, NO, NOlow, NO2 or SO2
  • Pre-calibrated gas sensors for quick and easy sensor change
  • Integrated pressure difference and air flow measurements for mass flow calculation
  • Measuring range extension for unrestricted measurement at high gas concentrations (up to 5 x sensor range)
  • Flue gas analysis with up to 4 gas sensors – freely configurable
  • Large selection of probes
  • Bluetooth interface
  • The instrument can also be operated remotely from your Android Smartphone or tablet using the free App
  • Convenient measurement data management
  • TÜV-tested /EN norm


Testo 340 is the ideal measuring instrument for:

  • Commissioning
  • Service and maintenance work 
  • Industrial burners
  • Stationary industrial engines
  • Gas turbines
  • Thermal processes


High gas concentrations? No problem with the Testo 340!

The flue gas analyser has an extended measuring range which allows you to carry out measurements even when gas concentrations are very high (ie. during industrial flue gas analysis).  The extended measuring range (thinning) is activated automatically when high gas concentrations suddenly occur, this enables continuation of the measurement. The gas sensor is not subjected to any higher stress than it is at low gas concentrations. This ensures the sensor has the longest possible service life.


Testo 340 Application:

Analysis of the gas atmosphere (thermal processes)

Flue gas analysis is used for thermal manufacturing processes, from ongoing emission control, via setting and optimisation of combustion systems, through to process monitoring. Flue gas analysis instruments serve to optimise operations and save fuel. At the same time, flue gas measurement enables checking and monitoring of flue gas emission limit values laid down by the authorities, along with functional testing of permanently installed emission instruments. Flue gas analysis instruments are increasingly used for monitoring process and product quality.

Technical Data   
O2 measurement  0 to 25 vol.%
CO measurement (H2-compensated)  0 to 10,000 ppm
COlow measurement (H2-compensated)  0 to 500 ppm
NO2 measurement  0 to 500 ppm
SO2 measurement  0 to 5,000 ppm
Temperature measurement  -40 to +1,200 °C
Draught measurement  -40 to +40 hPa
Differential pressure measurement  -200 to 200 hPa
Absolute pressure measurement  600 to +1,150 hPa
Derived parameters: 
Efficiency  0 to 120%
Flue gas loss  0 to 99.9%
Flue gas dewpoint  0 to 99.9 °C
CO2 determination (calculation from O2)  0 to CO2 max

What does the Testo 340 come with?

  • Testo 340 flue gas analyser
  • Rechargeable battery
  • Calibration protocol
  • Carrying strap
  • Equipped with O2 sensor

Testo 340 must be equipped with a second gas sensor otherwise the analyser cannot function. Max. 3 additional sensors can be fitted.

Testo 340 Industrial Flue Gas Analyser Options:

  • (0563 9352) Testo 340 Basic Flue Gas Analyser Kit
  • (0563 9350) Testo 340 NO/NO2 Kit
  • (0563 9351) Testo 340 SO2 Kit


Please note, these kits do not include sampling probe/hose, printer or software. These should be chosen to suit your specific application so please get in touch on to discuss your requirements: 01782 563030


Technical Specification for: Testo 340 Flue Gas Analyser For Use In Industry