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Testo 300 Smart Flue Gas Analyser

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  • An advanced flue gas analyser operated by a sophisticated touchscreen
  • Measures wide range of parameters including O2, CO, pressure and temperature
  • Produce professional reports and other documentation for instant distribution

rrp £849.00

now £761.00 (Ex. VAT) £913.20 (Inc. VAT)

rrp £849.00


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  • Description

    Testo 300 Smart Flue Gas Analyser

    The Testo 300 Smart Flue Gas Analyser is a next-generation instrument that combines advanced technology with Testo’s traditional strengths of highly accurate measurement. It is capable of measuring oxygen (0 to 21%), flue carbon monoxide (0 to 4,000ppm), draught (-9.99mbar to +40mbar), pressure (-100mbar to +200mbar), temperature (-40˚C to 1200˚C), and ambient carbon monoxide (0 to 2000ppm).

    All parameters are measured to an extremely high degree of accuracy and precision. Onboard calculation is available for values such as CO2 (0 to CO2 max.), combustion ratio, efficiency (Eta; 0% to 120%), and flue gas loss (0% to 99.9%).

    In addition to these comprehensive measurement and calculation functions, the Testo 300 is also one of the most sophisticated analysers available in terms of operation thanks to an advanced 5” colour touch screen and intuitive menus. Multiple readings can be displayed on screen at any one time and the user can view each parameter in the form of a graph over time. The display has a zoom function and can be individually configured to show the values most appropriate for the user.

    Furthermore, the user can add an integrated address book with details of clients’ heating systems and it is possible to use the analyser to instantly create professional documentation such as measurement protocols featuring readings, customer details, customer signatures and more. PDF reports are saved to the Testo 300’s large internal memory and it is possible to e-mail reports straight away using a WLAN wireless connection.

    The Testo interface function means that the analyser is capable of working with a range of industry software. It means it can connect with other devices for documenting and further processing.

    The Testo 300 benefits from an extremely rugged design that is capable of withstanding the challenges of day-to-day use. The touchscreen is recessed and scratch resistant whilst also being covered by a protective film. Strong magnets on the back of the analyser allow it to be securely mounted to a metal surface and bolted housing makes the analyser very stable and secure.

    Testo’s flexible probe matrix means that the Testo 300 is available with a wide range of probes which are easily exchanged in the field. Furthermore, probes from previous Testo analysers such as the 320 and 330 are still compatible with the Testo 300. The instrument has a battery life of 10 hours and is covered by a two-year warranty.

    Testo part number: 0564 3002 70

    Key Features

    • O2 measurement: 0 to 21%
    • CO measurement: 0 to 4000ppm
    • Draught measurement: -9.99mbar to 40mbar
    • Pressure measurement: -100mbar to 200mbar
    • Ambient CO measurement: 0 to 2000ppm
    • Temperature measurement: -40˚C to 1200˚C
    • Calculation: CO2, efficiency, combustion ration & flue loss
    • Advanced touchscreen interface
    • Intuitive menus and results display
    • Instant reports and analysis over WLAN connection
    • Sturdy, professional construction
    • Two-year warranty for instrument and sensors

    Kit Options

    The Testo 300 is available in a range of kits with options for an additional printer, pipe clamp temperature probes, pressure hose connectors and downloading software. A full breakdown of each kit option is available below.

     Standard KitPrinter KitAdvanced Kit
    Testo 300 Flue Gas Analyser
    Compact flue gas probe
    10 x spare filters
    Testo Printer  
    6 x paper rolls  
    Testo EasyHeat PC Software
    Instrument case
    Pipe clamp temperature probes    
    Pressure hose connection set    


    Testo 300 Standard Kit (0564 3002 70)

    • Testo 300 Flue Gas Analyser
    • Compact flue gas probe (180mm x ø6mm)
    • 10 x spare flue probe filters
    • Testo EasyHeat PC software
    • Carry case
  • Specification

    O2 measurement

    • Range: 0 to 21%
    • Accuracy: ±0.2% vol
    • Resolution: 0.1% vol

    CO measurement

    • Range: 0 to 4000ppm
    • Accuracy: ±20 ppm (0 to 400 ppm); ±5% of m.v. (401 to 2,000 ppm); ±10% of m.v. (2001 to 4,000 ppm)
    • Resolution: 1ppm

    Combustion ratio (calculated)

    • Resolution: 0.0001

    Efficiency testing

    • Range: 0 to 120%
    • Resolution: 0.1%

    Flue gas loss

    • Range: 0 to 99.9%
    • Resolution: 0.1%

    CO2 determination

    • Range: 0 to CO2 max.
    • Accuracy: ±0.2% vol
    • Resolution: 0.1% vol

    Draught measurement

    • Range: -9.99 to +40mbar
    • Accuracy: ±0.005 mbar (0 to 0.1 mbar); ±0.02 mbar (0.1 to +3.00 mbar); ±1.5% of m.v. (+3.01 to +40 mbar)
    • Resolution: 0.001mbar (0 to 0.1mbar); 0.01mbar (rest of range)

    Pressure measurement

    • Range: -100mbar to +200mbar
    • Accuracy: ±0.5 mbar (0 to +50.0 mbar); ±1% of m.v. (+50.1 to +100.0 mbar); ±1.5% of m.v. (+100.1 to +200 mbar)
    • Resolution: 0.01mbar


    • Range: -40˚C to 1200˚C
    • Accuracy: ±0.5°C (0.0 to +100.0°C); ±0.5% of m.v. (remaining meas. range)
    • Resolution: 0.1°C (-40 to +999.9°C); 1°C (remaining meas. range)

    Ambient CO measurement (internal/flue gas probe)

    • Range: 0 to 2000ppm
    • Accuracy: ±10 ppm (0 to 100 ppm); ±10% of m.v. (101 to 2,000 ppm)
    • Resolution: 1ppm

    Ambient CO measurement (external CO probe)

    • Range: 0 to 500ppm
    • Accuracy: ±3 ppm (0 to 29 ppm); ±10% of m.v. (30 to 500 ppm)
    • Resolution: 1ppm
    • Certification: The testo 300 is TÜV-tested according to 1st German Federal Immission Control Ordinance (BImSchV) EN 50379, Parts 1-3 
    • Storage temperature: -20˚C to 50˚C
    • Operating temperature: -5˚C to 45˚C
    • Charging temperature: 0 to 45˚C
    • Humidity application range: 15% to 90% RH
    • Power supply: Rechargeable battery, USB mains unit
    • Rechargeable battery life: 10 hours
    • Protection class: IP40
    • Memory: 1 million measurement values
    • Display: 5” touch display HD 1280 x 720 pixels, IPS (160k)
    • Weight: Approx. 800g
    • Dimensions: 244mm x 59mm x 98mm
    • Warranty: Two years
  • Supplied Accessories

    Testo 300 Standard Kit (0564 3002 70)

    • Testo 300 Flue Gas Analyser
    • Compact flue gas probe (180mm x ø6mm)
    • 10 x spare flue probe filters
    • Testo EasyHeat PC software
    • Carry case
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