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Next-Gen testo 300 Pro - Commercial Combustion Analyzer Kit (w/ O2 and CO 0-4,000, NO Sensor can be retrofitted) with Hard case and testo Bluetooth® Connector 

0564 3004 92
  • Intuitive measurement menus and fast-response Smart-Touch display
  • Includes O2 and CO Sensor (CO Sensor range 0-4,000ppm), NO Sensor can be retrofitted
  • In the kit: testo 300 Pro combustion analyzer with O2 and CO  sensors up to 4,000 ppm, power adapter, basic flue gas probe, spare dirt filters, EasyHeat software, hard shell instrument case
  • Integrated micro-pressure measurement
  • Documentation on site and reports sent by e-mail
  • Versatile probes and fast probe changes by the user
  • With this kit, you will be equipped for the most important measurements involving heating systems: the Next-Gen testo 300 Pro Combustion analyzer is supplied with long life O2 and CO sensor (CO range up to 4,000 ppm), testo Bluetooth® Connector, retrofittable NO Sensor, combustion probe,  rugged hardshell case and practical accessories
    • Product registration

      When you register your product, we will extend the regular manufacturer's warranty by one year.

      Register now

    Impressive measuring technology and quality
    • O2 sensor and CO sensor up to 4,000 ppm
    • testo Bluetooth® Connector
    • NO sensor - can be retrofitted
    • Longer sensor service life thanks to automatic sensor protection
    • Integrated draft and gas zeroing without removing the probe – the probe can remain in the flue during zeroing
    • For intensive daily use: high-quality Longlife sensors for O2 and CO with a service life of up to 6 years. That means at least one sensor replacement is saved in the course of a normal working life
    • Integrated fine pressure and 4 Pa measurement for legally prescribed measurements
    • Manufacturer's warranty of up to 5 years on O2 and CO sensor with product registration – without a maintenance contract
    • Versatile probes and fast probe changes: take advantage of quick-change probes and the multi-functional handle for attaching a variety of probe shafts (each available to order separately). You can for instance use longer probe shafts for flue gas pipes with larger diameters or flexible probes for difficult-to-access measuring points
    • Optionally available probes and accessories for further measuring tasks, such as gas flow pressure measurement, gas pipe testing, differential temperature measurement and ambient CO measurement
    Smart, intuitive, efficient: easy operation in day-to-day work
    • Smart-touch display for intuitive operation of the combustion analyzer: the display responds without delay – just as easy as on your smartphone
    • Get the measurement result faster: clearly structured measurement menus for all relevant measurements
    • Create documentation (including measuring value, measuring location, customer data) easily on site
    • Save PDF measurement reports directly in the instrument and always have them available
    • Signature function: your customer can sign measurement reports directly on the instrument
    • E-mail measurement reports directly to the office or to customers via WiFi (hotspot)
    • Large 5-inch HD display – enables you to see all the system's parameters immediately
    • Testo interface function for direct data transfer of measuring values to industry/customer-specific software*
    • Ready to use right away: in standby mode, the testo 300 is ready to measure at the touch of a button. Use it right away with the next customer – because you no longer need to wait for the end of the zeroing phase
    • Integrated Bluetooth® interface: immediate printout of the measuring values on site with the appropriate optional printer
    *Note: the manufacturer has to integrate an interface into the industry software to use the function
    Other advantages
    • 10-hour rechargeable battery life: an average measurement period of 2 hours means the combustion analyzer is capable of being used for one week on a full charge
    • Integrated, extra-strong magnets for easy fixing during the measuring process

    • Next-Gen testo 300 Pro combustion analyzer with O2 and CO sensor up to 4,000 ppm, NO - can be retrofitted (0633 3004 72)
    • testo Bluetooth® Connector (0554 3004)
    • Power adapter, includes USB cable (0554 1106)
    • Compact basic flue gas probe, 12 inch, Ø 0.25, Tmax. 932°F; 5 foot hose; including dirt filters and cone for fixing (0600 9763)
    • Spare dirt filters, compact probe; 10 count (0554 3385)
    • Free testo Smart App download
    • Hard shell instrument case for instrument, probes and accessories (0516 3300)

    CO probes

    Flue gas probes

    Further probes

  • Further probes
    Annular gap probe
      0632 1260
    • Further probes
      Solid fuel set (probe shaft, adapter, upgrade CD)
        0600 9765
      • Temperature probes


      • Accessories
        USB mains unit
        USB mains unit, including cable
          0554 1106

        • Flue gas measurement on heating systems

          Ideal for measurements involving heating systems:
          • high-quality Longlife sensors with a service life of up to 6 years, smart-touch operation, clearly structured measurement menus, creation of documentation on site, e-mailing of reports, large HD display, robust housing
          Further areas of application:
          • gas flow pressure measurement*, gas pipe test*, differential temperature measurement (flow and return temperature on heating systems)*, ambient CO measurement*, flue draught measurement on heating systems*
          * Please note: additional probes or accessories are required for these measurements and have to be ordered separately.
          Application testo 300