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testo 300 I Residential and Commercial Combustion Analyzer Kit with optional bluetooth printer I CO Meter for flue gas, draft, differential pressure and ambient CO levels of heating systems


  • Efficient: The combustion testing tool reliably measures the carbon monoxide and O2 level of furnaces and boilers, as well as temperature, draft and differential pressure
  • Durable: The flue gas meter is equipped with an extremely sensitive CO and O2 sensor with up to 6 years of life expectancy and a measuring range up to 4,000 ppm
  • Easy application: Start measuring from standby mode at the touch of a button. Extra strong magnets at the back of the meter enable a hands free and secure measuring operation
  • Intuitive: Thanks to the large HD smart touch display with a clearly structured measurement menu, the flue gas detector offers all measurements at one glance
  • Complete Set: Includes long life O2 and CO sensor, retrofittable NO Sensor, spare combustion probes and filters, rugged hardshell case and easyHeat software

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