Best Flue Gas Analyzer | Our Top 3 Picks


Nowadays, it is integral to test for the flue gas to improve the safety of either your business or your home. There are many flue gas analyzers on the market and it can be hard to know which one to buy. Below three of the best that range in price and features are reviewed.

Fieldpiece SOX3 Combustion Check Meter

The first flue gas analyzer up for review is the [amazon link=”B00AJPBK5U” title=”Fieldpiece SOX3 Combustion Check Meter” /]. We wanted to give you the best options possible so you can feel confident in your purchase of an analyzer. Instead of focusing on just one of the biggest products, we have decided to focus on three, each from a different manufacturer. They each range in price and features.

Furthermore, this will help those of you who have a limited budget in purchasing a flue gas analyzer, as they can have quite a hefty price tag if you don’t know what you are looking for. This list has a product for everyone. Before you even start looking, it is integral that you set up your budget to narrow down your search.

This first product was created by the Fieldpiece brand. Fieldpiece is known to create high-end analyzers that are competitively priced with many on the market today. They build products that last and that are easy to use. This specific model is a great way to tune furnaces when you don’t want to pay for a full in-depth analysis from a professional.

It is specifically designed to be used with HVACR pros and is compatible to tune most combustion equipment. It can measure right away the percentage of O2 and the flue temperature and can calculate the percentage of excess air, and the percentage of CO2 in the air as well. This helps test your combustion efficiency.

This tuning system has been programmed for three very common fuels and has been designed to help HVACR professionals to do more with their tools. It also comes with an electric pump with a pause, so you can pump at any time and save battery life.

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  • Great for beginners
  • Works great for testing flue gases
  • Fast readings
  • Don’t have to pump much
  • Comes with nice storage case



  • No OC readings


Sensorcon Carbon Monoxide Tester, CO Meter, & Analyzer Kit

The next flue gas analyzer is the [amazon link=”B004YWTP06″ title=”Sensorcon Carbon Monoxide Tester, CO Meter, & Analyzer Kit” /]. Sensorcon is an American company that prides itself on making fully American products. Many people in the United States, love to know when their products are coming fully from home, and Sensorcon knows that. This flue gas analyzer is also one of the more affordable options available on the market today.

If you are on a more limited budget, and looking for something that will still effectively get the job done, then this is the one for you. Sensorcon has created this product with a beginner in mind, so you don’t have to worry about it being too complicated for you, especially if you’ve never used one before.

If you want a more in-depth look at this product, and how to use it, Sensorcon offers a fantastic video demo that you can view at

This goes to show their fantastic customer service support. This device comes with both visual and loud alarms that are either at 35 ppm or 200 ppm.

The construction is strong and durable, and the analyzer is fully waterproof. It can measure carbon monoxide with 1 ppm resolution from 0-2000 ppm, making it a very accurate product. It includes a hand pump that can test for flue gas and a storage case for after usage. It has a 100% satisfaction guarantee, so if you are not pleased with it, send it back for a full refund or a new product.

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  • Great tutorial video
  • Affordable option
  • Can test for carbon monoxide easily
  • Flue pump works great



  • Not as many features as higher-end products
  • Takes quite a while to recover after alarm limit reached


Bacharach INSIGHT Plus 0024-8518 Residential Combustion Analyzer

The final flue gas analyzer up for review is the [amazon link=”B00DSVDJX8″ title=”Bacharach INSIGHT Plus 0024-8518 Residential Combustion Analyzer” /]. We decided to end with this specific product as it is the highest-end flue gas analyzer on the list.

Bacharach is known to be an elite brand when it comes to this sort of thing, and this device is no exception. It is a much larger financial investment. Whenever looking at a product on this scale, we want to make sure it offers the most features possible.

This analyzer has a full display system in color that has all the info on it, such as graphs and real-time analysis of the air around you. It is a very smart machine with an integral NOx filter and can measure between 0-4,000 ppm. It can also test the T-stack, air temperature, air draft, and pressure.

There are 9 pre-programmed fuels that you can select from. It is capable of storing data of up to 100 records and has a USB slot so you can download it for your records. It also can create customized printed reports that have your name, or company’s name, and logo on it.

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  • Works great
  • Elite product
  • Has all the features you want
  • Great LCD display
  • Tests flue gas easily



  • A very large price tag



If you are looking for the best flue gas analyzer, look no further than the list above. All three of these products have proven that they are some of the best on the market today because of their durability and ability to test for flue gas in the most effective way possible.

These will make your home or company feel that much safer. Now since you have the info, it is up to you to purchase the one that meets your needs and fits within the budget you have set.

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