Flue Gas Analysers

A must-have for professional boiler engineers and installers, we stock all of the most popular flue gas analysis tools including the Anton Sprint eVo range, the Kane 455 boiler analyser and Testo flue analysers.

Find out more about Flue Gas Analysers below.

Free Gift
Kane EGA-1/2/3 Exhaust Gas Analyser, Over Range Protection
Kane EGA-1/2/3 Exhaust Gas Analyser, Over Range Protection
£629.00
£754.80 inc. vat
  • Store up to 99 tests
  • Test warehouse indoor air quality
  • Check vehicle cab heaters
  • 1, 2, or 3 sensors
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Kane 458S Flue Gas Analyser (with Choice of Sensors)
Kane 458S Flue Gas Analyser (with Choice of Sensors)
£685.00
£822.00 inc. vat
  • Direct CO and CO2 measurement and sensor protection
  • Integrated wireless module
  • Five versions with different sensor combinations
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Kane 458S Flue Gas Analyser Kit – Choice of Sensors
Kane 458S Flue Gas Analyser Kit – Choice of Sensors
£875.00
£1,050.00 inc. vat
  • Includes a wireless module
  • Supplied with a Kane IRP-2 Infrared Printer
  • Five versions with different sensor combinations
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Sauermann Si-CA 230 Combustion Flue Gas Analyser - Choice of Sensor
Sauermann Si-CA 230 Combustion Flue Gas Analyser - Choice of Sensor
£912.00
£1,094.40 inc. vat
  • Available with up to six gas sensors
  • Sensors are pre-calibrated and field-replaceable
  • Protective rubber holster
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Kane 458s IAQ Flue Gas Analyser with Indoor Air Quality
Kane 458s IAQ Flue Gas Analyser with Indoor Air Quality
£949.00
£1,138.80 inc. vat
  • Tightness and CO/CO2 build-up tests
  • Range of kits to choose from
  • Multi-line display
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Kane 458S Flue Gas Analyser Pro Kit - Choice of Sensors
Kane 458S Flue Gas Analyser Pro Kit - Choice of Sensors
£985.00
£1,182.00 inc. vat
  • Five versions available with different sensor combinations
  • Easy-to-use rotary dial and six-line display
  • Includes a printer, air/ liquid probe, temperature probes, gas leak detector and pressure connection hose
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Kane 458S Flue Gas Analyser CPA1 Kit - Choice of Sensors
Kane 458S Flue Gas Analyser CPA1 Kit - Choice of Sensors
£1,049.00
£1,258.80 inc. vat
  • Five kits with different sensor combinations
  • Integrated wireless module
  • Supplied with a printer, air/ liquid probe, temperature probes, gas leak detector, appliance sampling probes and pressure connection hose
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Kane 458S Flue Gas Analyser Oil Kit – Choice of Sensors
Kane 458S Flue Gas Analyser Oil Kit – Choice of Sensors
£1,098.33
£1,318.00 inc. vat
  • Five versions available with different sensor combinations
  • Supplied with a wireless printer and oil pressure test set
  • Easy-to-use rotary dial and six-line display
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Kane 988 Industrial Flue Gas Analyser
Made To Order
Kane 988 Industrial Flue Gas Analyser
£2,000.00
£2,400.00 inc. vat
  • Can accommodate up to 8 gas sensors
  • Wireless connectivity
  • Measure O2, CO (H2 compensated), CO, HC, and CO2
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Kane EGA-4 Exhaust Gas Analyser, Four Gas
Made To Order
Kane EGA-4 Exhaust Gas Analyser, Four Gas
£2,169.00
£2,602.80 inc. vat
  • Store over 200 tests
  • Test warehouse indoor air quality
  • Check vehicle cab heaters
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Kane EGA-5 Exhaust Gas Analyser
Made To Order
Kane EGA-5 Exhaust Gas Analyser
£2,289.00
£2,746.80 inc. vat
  • Measures CO, CO2, O2, and HC
  • NDIR sensors ensure accuracy, deliver fast warm-up, and meet official test standards
  • Rugged, portable design with a protective rubber sleeve
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Kane 988 PLUS Industrial Flue Gas Analyser
Kane 988 PLUS Industrial Flue Gas Analyser
£2,369.00
£2,842.80 inc. vat
  • Check DPF & catalytic converters
  • Optional KANE-IRP3 Infrared Printer kit
  • Real time AFR & lambda for performance & efficiency
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Free Gift
Testo 340 Flue Gas Analyser – Basic Combustion Kit
Made To Order
Testo 340 Flue Gas Analyser – Basic Combustion Kit
£2,515.00
£3,018.00 inc. vat
  • Fitted with O₂, CO and NO sensors and an integrated Bluetooth module
  • Optimised for industrial applications and environments
  • Extended measurement range for use in environments with high gas concentrations
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Testo 340 Flue Gas Analyser - NO₂/ NOx Kit
Made To Order
Testo 340 Flue Gas Analyser - NO₂/ NOx Kit
£3,030.00
£3,636.00 inc. vat
  • Suitable for inspecting industrial engines and burners
  • Equipped with O₂, CO, NO and NO₂ sensors
  • Integrated Bluetooth module allows the analyser to be operated remotely via the user’s smartphone
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Testo 340 Flue Gas Analyser - SO₂ Kit
Made To Order
Testo 340 Flue Gas Analyser - SO₂ Kit
£3,030.00
£3,636.00 inc. vat
  • Fitted with O₂, CO, NO and SO₂ Sensors and an integrated Bluetooth module
  • Compact and rugged design suitable for industrial environments
  • Extended measurement range suitable for inspecting industrial engines and burners
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Testo 340 Industrial Flue Gas Analyser – Fully Customisable
Made To Order
Testo 340 Industrial Flue Gas Analyser – Fully Customisable
Call For Pricing
  • Choose three sensors: CO, COlow, NO, NOlow, NO2, or SO2
  • Supplied with an O2 Sensor as standard
  • Supports flow and pressure difference measurements
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Testo 350 Industrial Flue Gas Analyser – Fully Configurable
Made To Order
Testo 350 Industrial Flue Gas Analyser – Fully Configurable
Call For Pricing
  • Provided with an oxygen sensor (O2)
  • Choose up to five more sensors
  • Measuring range extension function for analysing high gas concentrations
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Need Help? Read Our Flue Gas Analyser Buying Guide

About Flue Gas Analysers & Kits

At PASS we stock a wide range of gas detection and measurement, combustion and boiler servicing accessories for GasSafe Engineers. We are authorised distributors for leading brands such as Testo, Anton, Crowcon, TPI, and Kane and are committed to helping you get the right equipment for both commercial and domestic settings.

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 PASS. Check out some of our kit options that include useful accessories as well as additional tools for temperature measurements, flow and return, and pressure.

Frequently Asked Questions

What gases can a flue gas analyzer detect?

They typically measure parameters such as oxygen (O2), carbon dioxide (CO2), carbon monoxide (CO), nitrogen oxides (NOx), Nitric Oxide (NO), sulfur dioxide (SO2), and sometimes other gases or particulate matter. By analysing these components, users can optimise combustion processes for efficiency, minimise emissions of pollutants, and ensure compliance with regulatory standards.

What industries commonly use flue gas analysers?

They play a vital role in industries such as heating, power generation, automotive, and environmental monitoring, helping to improve energy efficiency, reduce environmental impact and ensure appliances are safe.

What is the difference between a flue gas analyzer (FGA) and a combustion analyser?

In general, there isn't a big difference between them as they are often used interchangeably to refer to devices that measure and analyse the composition of gases produced by combustion processes. However, there can be slight differences in how these terms are used depending on context and specific applications and devices.

They generally both measure gases emitted from combustion processes, such as those from boilers, furnaces, or engines. FGA's focus on measuring parameters like oxygen, carbon dioxide, carbon monoxide, nitric oxide, nitrogen oxides, and other combustion-related gases. They are commonly used in heating, power generation, and environmental monitoring industries. Combustion analysers may offer additional features such as calculating combustion efficiency, stack draft, and performing other diagnostic functions beyond basic gas analysis.