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    Flue Gas Analysers & Kits

    For decades, Testo has been a trusted name in flue gas measuring instruments. As a leading UK manufacturer for over 40 years, we provide high-quality products designed for accurate and reliable measurements.

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    Testo flue gas analysers

    Most Popular Products In this Category

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    testo 310 (2nd Gen) - Flue Gas Analyser - Standard Kit
    Standard Kit - including analyser with probe, case, and power supply.
    User-Friendly Interface - Intuitive colour display with clear menu navigation for simple operation.
    Order no.0563 3106
    £ 449.00with VAT £ 538.80
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    testo 310 (2nd Gen) - Flue Gas Analyser - Printer Kit
    Printer Kit - including analyser with probe, testo Bluetooth printer, case, and power supply.
    User-Friendly Interface - Intuitive colour display with clear menu navigation for simple operation.
    Order no.0563 3107
    £ 549.00with VAT £ 658.80
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    testo 327-1 - Flue Gas Analyser (advanced kit)
    Advanced Kit - including analyser, probe, testo IR Printer, 2x temperature clamp probes, case, and power supply.
    Comprehensive Analysis - Performs all major boiler measurements.
    Order no.0563 3203 81
    £ 699.00with VAT £ 838.80
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    testo 327-1 - Flue Gas Analyser (standard kit)
    Standard Kit - including analyser, probe, case, and power supply.
    Comprehensive Analysis - Performs all major boiler measurements.
    Order no.0563 3203 80
    £ 549.00with VAT £ 658.80
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    testo 300+ Flue Gas Analyser smart kit - (O2, CO sensor up to 8,000 ppm)
    Fast and easy to operate: intuitive measurement menus and fast-response Smart-Touch display
    Designed for domestic boiler service, 8,000ppm H2 compensated CO sensor and O2 sensor fitted with 5 year lifespan
    Order no.300564 3004 01
    £ 1,099.00with VAT £ 1,318.80
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    The NEW testo 310 (2nd Gen)

    Combines simple functions with a high level of measurement accuracy, and is perfect for all basic measurements on domestic heating systems.

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    testo 310 (2nd Gen) - Flue Gas Analyser - Standard Kit
    Standard Kit - including analyser with probe, case, and power supply.
    User-Friendly Interface - Intuitive colour display with clear menu navigation for simple operation.
    Order no.0563 3106
    £ 449.00with VAT £ 538.80
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    testo 310 (2nd Gen) - Flue Gas Analyser - Printer Kit
    Printer Kit - including analyser with probe, testo Bluetooth printer, case, and power supply.
    User-Friendly Interface - Intuitive colour display with clear menu navigation for simple operation.
    Order no.0563 3107
    £ 549.00with VAT £ 658.80
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    testo 327 Kits

    A reliable and robust entry into assessing the efficiency and emissions of domestic boilers.

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    testo 327-1 - Flue Gas Analyser (standard kit)
    Standard Kit - including analyser, probe, case, and power supply.
    Comprehensive Analysis - Performs all major boiler measurements.
    Order no.0563 3203 80
    £ 549.00with VAT £ 658.80
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    testo 327-1 - Flue Gas Analyser (advanced kit)
    Advanced Kit - including analyser, probe, testo IR Printer, 2x temperature clamp probes, case, and power supply.
    Comprehensive Analysis - Performs all major boiler measurements.
    Order no.0563 3203 81
    £ 699.00with VAT £ 838.80
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    testo 327 - Flue Gas Analyser (Standard Kit + gas leak detector)
    Standard Kit + Gas Leak Detector - including analyser, probe, gas leak detector, case, and power supply.
    Comprehensive Analysis - Performs all major boiler measurements.
    Order no.300563 1327
    £ 599.00with VAT £ 718.80
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    testo 327 - Flue Gas Analyser (advanced kit + gas leak detector)
    Advanced Kit + Gas Leak Detector - including analyser, probe, testo IR Printer, 2x temperature clamp probes, gas leak detector, case, and power supply.
    Comprehensive Analysis - Performs all major boiler measurements.
    Order no.300563 2327
    £ 735.00with VAT £ 882.00
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    testo 327 - Flue Gas Analyser (standard kit + testo gas leak detector + CPA1 kit)
    Standard Kit + Gas Leak Detector + CPA1 Set -  including analyser, probe, gas leak detector, CPA1 set, case, and power supply.
    Comprehensive Analysis - Performs all major boiler measurements.
    Order no.300563 3327
    £ 675.00with VAT £ 810.00
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    testo 327 - Flue Gas Analyser (advanced kit + gas leak detector + CPA1 kit)
    Advanced Kit + Gas Leak Detector + CPA1 Set - including analyser, probe, testo IR Printer, 2x temperature clamp probes, gas leak detector, CPA1 set, case, and power supply.
    Comprehensive Analysis - Performs all major boiler measurements.
    Order no.300563 4327
    £ 815.00with VAT £ 978.00
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    All-NEW testo 300+ Kits

    Smarter emissions monitoring for improved efficiency and reduced costs: Now with enhanced sensors, an improved cost of ownership and connectivity of up to 4 smart probes!

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    testo 300+ Flue Gas Analyser Handset only - (O2, CO Sensor up to 8,000 ppm)
    Designed for domestic boiler service, 8,000ppm H2 compensated CO sensor and O2 sensor 
    Efficient, wireless parallel measurement of up to four testo Smart Probes simultaneously 
    Order no.0633 3004 95
    £ 630.00with VAT £ 756.00
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    testo 300+ Flue Gas Analyser standard kit - (O2, CO sensor up to 8,000 ppm)
    Designed for domestic boiler service, 8,000ppm H2 compensated CO sensor and O2 sensor 
    Efficient, wireless parallel measurement of up to four testo Smart Probes simultaneously 
    Order no.0564 3004 12
    £ 929.00with VAT £ 1,114.80
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    testo 300+ Flue Gas Analyser advanced kit - (O2, CO sensor up to 8,000 ppm)
    Bluetooth clamp probes and manometer allow wireless measurement of flow/return temperature alongside gas pressure and differential temperature.
    CO sensor and O2 sensor fitted with 5 year lifespan
    Order no.0564 3004 13
    £ 999.00with VAT £ 1,198.80
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    testo 300+ Flue Gas Analyser smart kit - (O2, CO sensor up to 8,000 ppm)
    Fast and easy to operate: intuitive measurement menus and fast-response Smart-Touch display
    Designed for domestic boiler service, 8,000ppm H2 compensated CO sensor and O2 sensor fitted with 5 year lifespan
    Order no.300564 3004 01
    £ 1,099.00with VAT £ 1,318.80
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    testo 300+ Flue Gas Analyser ultra-smart kit - (O2, CO sensor up to 8,000 ppm)
    Designed for domestic boiler service, 8,000ppm H2 compensated CO sensor and O2 sensor 
    Efficient, wireless parallel measurement of up to four testo Smart Probes simultaneously 
    Order no.300564 3004 02
    £ 1,149.00with VAT £ 1,378.80
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    testo 300+ Flue Gas Analyser Heat pump kit - (O2, CO sensor up to 8,000 ppm)
    Bluetooth clamp probes and manometer allow wireless measurement of flow/return temperature alongside gas pressure and differential temperature
    Kit provides test equipment for boiler combustion testing as well as testing of monobloc or split system heat pumps
    Order no.300564 3004 04
    £ 1,199.00with VAT £ 1,438.80
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    testo 300LL Kits

    Perform installation and maintenance on commercial heating systems utilising an analyser equipped with Longlife sensors.

    testo 300 kit
    testo 300LL Longlife - Flue gas analyser (O2, CO H2-compensated up to 30,000 ppm, NO - can be retrofitted)
    Designed for servicing and commissioning commercial heating systems, 30,000ppm H2 compensated CO sensor and O2 sensor 
    Efficient, wireless parallel measurement of up to four testo Smart Probes simultaneously 
    Order no.0564 3004 82
    £ 1,749.00with VAT £ 2,098.80
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    testo 300 kit
    testo 300LL Longlife - Flue gas analyser (O2, CO H2-compensated up to 30,000 ppm) with NO Sensor
    Designed for servicing and commissioning commercial heating systems, 30,000ppm H2 compensated CO sensor and O2 sensor 
    Efficient, wireless parallel measurement of up to four testo Smart Probes simultaneously 
    Order no.0564 3004 84
    £ 2,299.00with VAT £ 2,758.80
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    testo 300 kit
    testo 300LL Longlife - Flue gas analyser (O2, CO H2-compensated up to 30,000 ppm, NO - can be retrofitted)
    Designed for servicing and commissioning commercial heating systems, 30,000ppm H2 compensated CO sensor and O2 sensor 
    High-quality sensor technology with up to 6 years' service life
    Order no.0564 3004 89
    £ 1,959.00with VAT £ 2,350.80
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    About Flue Gas Analysers & Kits

    Testo's gas analysers offer a comprehensive suite of measurement functions, including oxygen, temperature, pressure, and more, enabling accurate assessment of combustion efficiency. 

    Many models feature advanced capabilities such as NOx measurement, H2 compensation, and Bluetooth connectivity. Beyond standard combustion analysis, Testo solutions provide valuable insights into ambient CO levels, flue system tightness, and potential let-by issues. 

    These versatile instruments are essential for commissioning a wide range of combustion appliances, including boilers, cookers, and grills, ensuring optimal performance and compliance with environmental regulations. 

    Whether you are looking for a standalone unit with or without an LCD screen or a smart analyser that can connect with Apps, there's plenty of choice at Testo. Check out some of our kit options that include useful accessories as well as additional tools for temperature measurements, flow and return, and pressure.

    Shop our range and find the right boiler flue gas testing equipment for your needs. We have free delivery available on all products available here.

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