Starting at $859.00 Starting at $773.10
  • Usually ships in 4-6 business days



  • Easy-to-read backlit display
  • Top-of-display icons
  • Operating Temp: 23 to 113°F (73 to 235°C)
  • 10 hour Lithium Ion rechargeable battery
  • 30 seconds to start
  • Quick exchange probe filter
  • Powerful magnets allow for hand free operation
  • Condensate trap

What's in the Box

  • Probe & hose
  • Case silicon tubing
  • 5 particulate filters
  • 5 pressure plugs
  • AC power supply/recharger (USB)
  • Calibration certificate


The Testo 310 Residential Combustion Analyzer represents a new class of instruments for Testo and provides exceptional value and expanded capabilities in combustion testing. The 310 sets a new standard in reliable combustion tuning with its rugged housing, simple design and advanced sensor technology.

The easy-to-read backlit display shows more measurements which provides a more complete picture of the combustion process. Simple top-of-display icons show you the current measurement functions. After only 30 seconds the 310 is ready to test.

The 310 eliminates the need for look up charts and the purchase and disposal of expensive chemicals. The kink-resistant hose is integrated into the housing to eliminate leaks. The stainless steel probe and cone-stop is perfect for residential furnace, boiler and water heater applications. With six different fuels to select from, it provides the flexibility you need for your tuning opportunities.