1. Home
  2. testo 300 Pro Combustion Analyzer

testo 300 Pro - Combustion analyzer (O2, CO up to 4,000 ppm, NO - can be retrofitted)

0633 3004 72
  • Intuitive measurement menus and fast-response Smart-Touch display
  • Including O2, CO sensor up to 4,000 ppm (NO sensor - can be retrofitted)
  • Integrated micro-pressure measurement
  • Documentation on site and reports sent by e-mail
  • Versatile probes and fast probe changes by the user
  • Magnetic holder to fix instrument in place
  • The testo 300 Pro combustion analyzer is ideal for heating engineers who carry out installation and maintenance work on heating systems several times a day. It combines decades of experience in measuring technology with contemporary smart-touch operation, long life sensors, robust construction and e-mailing of reports. The testo 300 Pro enables easy measurement of flue gas, draft, pressure, ambient CO and differential temperature – you can also retrofit an NO sensor.
    Truly smart combustion measurement on heating systems with the testo 300 Pro combustion analyzer. High-quality sensors, intuitive operation with smart-touch technology and smart features, such as efficient documentation and e-mailing of reports, will make your day-to-day work easier.

    testo 300 Pro combustion analyzer with smart-touch operation – Features

    Impressive measuring technology and quality
    • O2 and CO sensor up to 4,000 ppm
    • NO sensor - can be retrofitted
    • Longer sensor service life thanks to automatic sensor protection
    • 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
    • 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 rifght 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 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

    testo 300 Pro combustion analyzer with O2 and CO sensor up to 4,000 ppm, NO sensor - can be retrofitted, USB cable with power supply

    General technical data

    Operating humidity
    15 to 90 %rH non-condensing
    approximately 28.2 oz. / approximately 800 g
    9.6 (including probe connection) x 3.9 x 2.3 in. (LxWxH) / 244 (including probe connection) x 98 x 59 mm (LxWxH)
    Operating temperature
    23° to 113 °F / -5 to +45 °C
    Protection class
    Product colour
    Display type
    5.0" touch display, HD 1280*720 pixels, IPS (160 k)
    Power supply
    Rechargeable battery, USB mains unit
    Warranty conditions
    <a href="https://www.testo.com/guarantee">https://www.testo.com/guarantee</a>
    TÜV-tested according to 1st German Federal Immission Control Ordinance (BImSchV) EN 50379, Parts 1-3
    Gas sensors (O₂, CO) 48 months; NO, NOlow, COlow sensor 24 months; rechargeable battery: 12 months; Thermocouple 12 months
    1,000,000 measuring values
    Storage battery type
    Lithium ion battery
    Battery life
    10 h
    Storage temperature
    -4° to 122 °F / -20 to +50 °C
    Charging temperature
    32° to 113 °F / 0 to +45 °C

    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

        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