Testo 330 LL

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Testo 330 LL

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The Testo 330 LL is the professional flue gas analyzer. It fulfils the highest demands and can cope with all measurement tasks on heating systems. Multiple country-specific measurements menus are stored in the instrument. It is possible to select from an extensive program of flue gas probes, which often replaces an additional measuring instrument. Other fuels can be defined by the user as desired. Apart from this, gas pipe tests or solid fuel measurement can also be carried out with the Testo 330 LL.


The high-quality instrument is especially excellent thanks to the successful combination of outstanding sensor technology, long life and security. It has three high-quality measuring cells for O2, CO and NO as well as a temperature probe integrated into the flue gas probe for the direct measurement of temperature, O2, CO and NO. The abbreviation "LL" stands for "Long Life". The sensors of the instrument series Testo 330 LL have an extended lifetime of up to 6 years. At least one O2 and CO sensor replacement can be saved in the course of the typical working life. Benefits:
  • Many measurement menus for analyses on heating systems, incl. solid fuel and gas pipe test menus
  • Integrated sensor monitoring
  • 4 Years' warranty without maintenance contract
  • High-resolution colour graphice display
  • Logger funtion (up to 2h continuous measurement value recording)
  • TÜV-tested according to EN50379, Parts 1-3
  • Two Models available: TESTO 330-1 LL, TESTO 330-2 LL
  • Dilution up to 30,000 ppm CO (Testo 330-2 LL)
  • Zeroing in flue possible (Testo 330-2 LL)

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