Testo 327 Oxygen Analyzer

Advanced Sensor Technology
with 3-year warranty on O2 sensor

The testo 327 Oxygen Analyzer offers a new dimension to measuring and maintaining combustion systems from engine tuning to adjusting burners in industrial kilns and troubleshooting coal-fired systems.

testo O2 replacement cell

Quickly measure and make better O2 adjustments with its simple intuitive operations and rugged design. Its advanced pre-calibrated sensors utilize the most modern materials and components and backs them with a long 3-year O2 sensor warranty for the longest lasting instrument operation.




  • Fast 30-second warm-up
  • 4-line backlit display (user configurable)
  • Rugged single line probe connection
  • Integrated protective boot
  • Built-in magnetic back for hands-free work
  • Wireless IR link for printer (printer optional)
  • 5 hr. Li-Ion rechargeable battery
  • Easily accessible field serviceable sensor
  • Sensor diagnostics and battery life indicator

To learn more about the testo 327 oxygen analyzer
call toll-free 800-227-0729 or complete our convenient contact form.