testo 330i advanced set - flue gas analyzer set

Order-Nr.  0563 3000 71

  • Operation independent of measuring location and display of readings via smartphone or tablet and the testo 330i App

  • Paperless documentation and report creation on site with the testo 330i App

  • Reliable attachment of the flue gas probe with the testoFix probe holder

  • Robust, completely enclosed plastic housing for use in harsh environments

The testo 330i flue gas analyzer advanced set will enable you to overcome all the challenges that crop up when commissioning and servicing heating systems. The testo 330i advanced set contains the flue gas analyzer, a flue gas probe and a temperature probe, along with practical accessories.


Product Description

At the core of the innovative testo 330i flue gas analyzer is the measuring technology of the preceding model testo 330 LL, which has been proven in practice a thousand times over. The outstanding technical features of this flue gas analyzer, such as its user-replaceable long-life sensors, integrated draught and gas zeroing or CO/fresh air dilution have been combined with a revolutionary new method of operation.

The first remote-controlled flue gas analyzer

Operation of the testo 330i flue gas analyzer and the display of readings are implemented wirelessly via the testo 330i App on your smartphone or tablet. Therefore, when making adjustments to the system, you always have the readings to hand. In the App you can also enter customer data, make adjustments to the measuring instrument settings and add comments or photos to measurement protocols on site and send them to the customer or your office via e-mail. If you need the results of your work on paper – no problem: The advanced set also includes a Bluetooth printer with a mains unit.

Requirement: iOS 7.1 / Android 4.3 or newer. Mobile end device with Bluetooth 4.0.

Further advantages of the testo 330i flue gas analyzer

  • User-replaceable long-life sensors with a service life of up to 6 years. This saves at least one sensor replacement over the instrument's typical useful life
  • H2-compensated CO measuring cell. The testo 330i is therefore also approved for the official acceptance testing of heating systems
  • TÜV-tested according to 1st German Federal Immission Control Ordinance (BImSchV) and EN 50379, Parts 1-3
  • Integrated draught and gas zeroing without removing the probe. The probe can remain in the flue during zeroing
  • Fresh air dilution upon exceeding a CO threshold value up to 30,000 ppm

Flue gas analyzer set with practical accessories

The testo 330i flue gas analyzer advanced set includes the following probes:
  • Modular flue gas sampling probe (probe length: 180 mm) with 65 cm long, extra-flexible hose
  • Combustion air temperature probe (probe length: 190 mm)
The patent-pending testoFix probe holder is included in the set, enabling you to quickly and easily attach the probes securely to the flue gas duct. This global innovation also serves as a fall-proof suspension system for the testo 330i flue gas analyzer.
A mains unit for the measuring instrument, the testo 330i Bluetooth/IRDA printer with mains unit and a robust case for the measuring instrument and accessories complete this set.

Delivery Scope

•    testo 330i flue gas analyzer with H2-compensated CO sensor (0632 3000 51)
•    Modular flue gas probe with hose, 650 mm (0600 9780)
•    Combustion air temperature probe, 190 mm (0600 9787)
•    International mains unit (0554 1096)
•    testoFix probe holder for probes with a diameter of 8 mm (0554 3006)
•    testo 330i BLUETOOTH®/IRDA printer (0554 0621)
•    Instrument case for testo 330i, probes and accessories (dimensions: 520 × 130 × 400 mm, W × H × D) (0516 3302)

Technical Data

General technical data


720 g (excluding battery)


270 x 160 x 57 mm

Operating temperature

-5 to +45 °C

Power supply

Rech. batt. block 3.7 V / 2.6 Ah; Mains unit 6 V / 1.2 A (optional)

System requirements

requires iOS 7.1 or newer; requires Android 4.3 or newer; requires mobile end device with Bluetooth 4.0

Maximum memory

500000 readings

Storage temperature

-20 to +50 °C

Differential Pressure - Piezoresistive

Measuring range

0 to 300 hPa


±0.5 hPa (0.0 to +50.0 hPa)

±1 % of mv (+50.1 to +100.0 hPa)

±1.5 % of mv (Remaining Range)


0.1 hPa

Flue gas O₂

Measuring range

0 to 21 Vol.%


±0.2 Vol.%


0.1 Vol.%

Flue gas CO (with H₂-compensation)

Measuring range

0 to 8000 ppm


±10 ppm or ±10 % of mv (0 to 200 ppm)

±20 ppm or ±5 % of mv (201 to 2000 ppm)

±10 % of mv (2001 to 8000 ppm)


1 ppm

CO determination (with H₂-compensation), automatic dilution

Measuring range

0 to 30000 ppm


±200 ppm or ±20 % of mv (0 to 30000 ppm)


1 ppm

Flue gas NO

Measuring range

0 to 3000 ppm


±5 ppm (0 to 100 ppm)

±5 % of mv (101 to 2000 ppm)

±10 % of mv (2001 to 3000 ppm)


1 ppm


Differential Pressure flue gas Draught - Piezoresistive

Measuring range

-9.99 to +40 hPa


±0.02 hPa or ±5 % of mv (-0.50 to +0.60 hPa)

±0.03 hPa (+0.61 to +3.00 hPa)

±1.5 % of mv (3.01 to +40.00 hPa) (the greater value applies)


0.01 hPa


Measuring range

-40 to +1200 °C


±0.5 °C (0.0 to +100.0 °C)

±0.5 % of mv (Remaining Range)


0.1 °C (-40 to +999.9 °C)

1 °C (Remaining Range)

dependent on the thermocouple

Flue gas degree of effectivity, Eta (calculated)

Measuring range

0 to 120 %


0.1 %

Flue gas loss (calculated)

Measuring range

0 to 99.9 %


0.1 %

Flue gas CO₂ calculation (calculated from O₂)

Measuring range

Display range 0 to CO₂ max


±0.2 Vol.%


0.1 Vol.%


Accessories for probes



Differential pressure measurement

You can use the testo 330i flue gas analyzer to check the gas supply on gas boilers. You can therefore measure gas flow pressure and gas resting pressure in order to ensure that the system can be commissioned. You can also use the data specified by the manufacturer for the nozzle pressure to tailor the appliance output to the heat requirement.

Flue gas analysis and flue gas measurement

The testo 330i is equipped with two long-life sensors for measuring O2 and CO and can optionally be upgraded with an NO sensor. Flue gas and draught are measured in parallel, so all relevant flue gas parameters are displayed simultaneously on the smartphone.

O2 supply air measurement

In balanced flue systems, you can use the testo 330i flue gas analyzer to check whether there is a leak in the flue gas system. Measure the O2 content of the combustion air in the dual wall clearance to ensure that no flue gas is getting into the combustion air supply, thus preventing damage due to condensate or impairment of the combustion process.


Product Brochures



  • Firmware testo 330i   (v2.11, BIN, 3.6 MB) If the firmware update does not start under Windows 8.1 or Windows 10, a new bootloader must be installed on the measuring device once.
    A description and all necessary files can be found under the search term: Update-Kit / Bootloader

  • Update-Kit / Bootloader  (V1.22, EXE, 381 KB) If the firmware update does not start under Windows 8.1 or Windows 10, a new bootloader must be installed on the measuring device once.
    A description and all necessary files can be found under the search term: Update-Kit / Bootloader

  • Testo ZIV driver ZIV 2000 for testo 320 and testo 330  (ZIP, 8.8 MB) Testo ZIV driver in the 2000 version. The Testo ZIV driver is used to connect the testo 320 and testo 330 measuring instruments to an application program (sweeping district administration program) according to the interface Version 2.0 defined by the Zentralverband des Schornsteinfegerhandwerks (Central Association of Chimney Sweeps, ZIV). Please check with the manufacturer of your application program as to whether this interface is supported. If Microsoft .NET Framework 4.0 has not been installed on the computer, it must be downloaded from the Microsoft website and installed on the system.