Testo 320 and 310


  • High-definition graphic display
  • Simple icon navigation
  • Rugged single line probe connection
  • Built-in magnetic back for hands-free work
  • Wireless IR link for printer (printer optional)
  • Field-replaceable sensor
  • Sensor diagnostics and battery life indicator

Testo 320 and 310 Combustion Analyzer- Residential & Commercial

Two solutions for better combustion tuning.

Testo 310 & 320 make combustion analysis easier to perform, easier to control, and easier to understand. Testo 310 residential combustion analyzer represents a new class of instruments for Testo & provides exceptional value and expanded capabilities in combustion testing. Testo 320 is designed for the job site & for the contractor that expects more. Use it for basic testing & tuning of all types of boilers, heater or furnaces. Use it to set up and commission more complex multi-stage, or modulating heating systems.