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.

- Pressure Relief Valve
- Sprint Pro
- Clip CO personal carbon monoxide detection alarm

- Includes everything in kit 1 plus pipe clamp temperature probes
- Built-in memory and PC connectivity
- High accuracy


- Testo Gas Leak Detector
- CPA1 Probe Set
- Accessories and more

- Selection of probes and handles
- Extendable Probe Handle
- Sprint Pro
- Caters for any flue related scenario

- Printer
- Pressure relief valve
- Two temperature probes

- Wireless connection
- Measure differential temperature & pressure
- Calculate excess air and combustion efficiency


- Comprehensive flue gas analyser kit
- Includes Testo 327-1
- Also comes with large amount of accessories

- Compact, lightweight, and durable
- Calculate CO2%, combustion efficiency and excess air
- Available with a choice of up to three sensors: O2, CO, NO, and low-range NO

- CPA1 flue gas analyser kit
- Measure O2, CO, and temperature
- Calculate CO2, CO air free, excess air, and combustion efficiency

- Supplied with a probe, charger, and case
- Enabled for use with TPI’s View App
- Large, clear, easy-to-read display

- Printer
- Pressure relief valve
- Two temperature probes and a BS7967 probe set


- Testo Gas Leak Detector
- A range of accessories
- Printer

- Kane Printer
- Soft Carry Case

- Pressure Relief Valve
- Sprint Pro
- Clip CO personal carbon monoxide detection alarm

- IR printer, pipe temperature probes and gas detector included
- Advanced analyser with 10 built-in fuels
- Easy to use and suitable for any gas engineer

- Includes printer, smoke pump and oil filter
- Also comes with all standard accessories
- Built-in memory and advanced testing procedures

- Supplied with a probe, charger, case, & wireless printer
- Large, easy-to-read display with a Hold function
- Highly reliable chemical sensors

- Comes with infrared printer, cooked probe and pipe clamp temp probes
- Advanced flue analyser with built-in memory
- Excellent value

- Printer
- Pressure relief valve
- Two temperature clamps

- Selection of probes and handles
- Extendable Probe Handle
- Sprint Pro
- Caters for any flue related scenario

- Cost-effective, comprehensive, condensation-resistant analyser
- Features a dual-beam IR CO2 sensor
- Wirelessly transfer measurements to a smartphone/ tablet with the Anton Sprint Pro App installed

- Store up to 99 tests
- Test warehouse indoor air quality
- Check vehicle cab heaters
- 1, 2, or 3 sensors


- Testo Gas Leak Detector
- CPA1 Probe Set
- Printer, accessories and more

- Sprint Pro 1 Flue Gas Analyser
- Sprinter IR Printer
- Custom-Designed Storage Bag
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.