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testo 310 I Residential Combustion Analyzer Kit I Flue Gas Detector Set for Heating Systems

  • Based on 308 reviews
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Style: No App Connection


Size: Standard Set without Printer


Features

  • EFFICIENT; The testo 310 co2 detector is ideal for more complex flue gas analyses, maintenance, safety checks, and furnace efficiency confirmations of residential heating systems
  • VERSATILE; With its advanced sensor technology, the carbon monoxide meter offers accurate readings of O2, CO2, ambient CO, draft and pressure, temperature and combustion efficiency
  • DURABLE; Thanks to its rugged housing with an integrated, kink-resistant hose, the gas leak detector is securely protected from impact and leaks
  • EASY OPERATION; Equipped with a backlit display, quick-start and integrated condensation tap and magnet, the co2 monitor delivers a hands-free and easy application
  • COMPLETE SET; Includes a probe with cone, extra hoses and particulate filters as well as a pressure plug and a protective hard-shell case

Description

Setting a new standard in reliable combustion tuning - the testo 310 Get your readings right - every time: The testo 310 provides accurate measurements for O2, CO (with built-in NOx filter), CO2, undiluted CO (CO air free), ambient CO, draft & pressure, temperature (flue & ambient) and excess air for applications like checking boiler efficiency, tuning and water heat checks. Technical Data: Temperature measuring range(K TC): -4° to 212 °F / -20 to +100 °C Temperature measurement accuracy: ±2 °F / ±1 °C Temperature measuring range (J TC): 32° to 752 °F / 0 to +400 °C Temperature measurement accuracy: ±1.8 °F (32° to 212 °F) / ±1 °C (0 to +100 °C); ±1.5 % of mv (> 212 °F) / ±1.5 % of mv (> 100 °C) O2 measuring range: 0 to 21 Vol.% O2 measurement accuracy: ±0.2 Vol.% Draft measuring range: -8 to +8 InH₂O / -20 to +20 hPa Draft measurement accuracy: ±0.01 InH₂O (-1.20 to +1.20 InH₂O) / ±0.03 hPa (-3.00 to +3.00 hPa) / ±1.5 % of mv (Remaining Range) Efficiency measuring range (calculated): 0 to 120 % Flue Gas loss measuring range: 0 to 99.9 % CO2 calculation measuring range: 0 to CO₂ max (Display range) CO2 calculation accuracy: ±0.2 Vol.% Pressure measuring range: -16 to +16 InH₂O / -40 to +40 hPa Pressure measurement accuracy: ±0.2 InH₂O / ±0.5 hPa CO and ambient CO measuring range: 0 to 4000 ppm CO ambient CO measurement accuracy: ±20 ppm (0 to 400 ppm) /±5 % of mv (401 to 2000 ppm) /±10 % of mv (2001 to 4000 ppm) Dimensions: 8 x 3 x 2 in. / 201 x 83 x 44 mm Weight: (with probe) Approx. 25 oz. / (with probe) Approx. 700 g Scope of Delivery: ✓ testo 310 combustion analyzer ✓ sensors ✓ probe with cone ✓ hose ✓ silicon tubing (for pressure) ✓ 5 x particulate filters ✓ 5 x pressure plugs ✓ calibration certificate ✓ Hard-shell case

Brand: Testo


Style: No App Connection


Power Source: Corded Electric


Product Dimensions: 1.73"D x 3.27"W x 7.92"H


Item Weight: 2.46 Kilograms


Alarm: Audible


Operating Humidity: 95 percent


Global Trade Identification Number: 28


Unit Count: 1.0 Count


Number of Items: 1


Power Source: Corded Electric


Alarm: Audible


Operating Humidity: 95 percent


Product Style: No App Connection


Item Dimensions D x W x H: 1.73"D x 3.27"W x 7.92"H


Item Weight: 2.46 Kilograms


Brand: Testo


Model Number: 0563 3100


Global Trade Identification Number: 28


Number of Items: 1


Manufacturer: Testo


Mfr Part Number: 0563 3100 01


Unit Count: 1.0 Count


Built-In Media: logic-analyzers


Frequently asked questions

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Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

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View our full returns policy here.

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Top Amazon Reviews


  • Must have for servicing furnaces.
Style: No App Connection Size: Standard Set without Printer
I was able to use this to confirm a cracked heat exchanger on my old furnace. I also used it to confirm my new furnace was working correctly.
Reviewed in the United States on December 10, 2025 by RatherBeTraveling

  • Quality
Style: No App Connection Size: Standard Set without Printer
Please don't buy! I opened it right away and turned it on and gave me O2 sensor code and will not work. I called Testo and they said the O2 sensor needs to be replaced and will not cover it under warranty. I bought three and they are all the same! Don't recommend buying these!
Reviewed in the United States on January 8, 2026 by HN Plumbing, heating, electrical JC Washburn LLC

  • Easy to use, good battery life, decent display
Style: No App Connection Size: Standard Set without Printer
Works well for residential systems, able to quickly tune furnaces and boilers for optimal AFUE. I routinely get 83-86% out of standard 80% furnaces after using this tool. Make sure you know what values to look for when balancing a system, such as excess air percentages and O2/CO2/CO levels, etc. Nice to be able to take static pressures on duct work as well as temperature splits, although the temperature readings take a while to even out. Easy to use, easy to switch from propane to nat gas, only gripe is that it didn't come with the printer. Do yourself a favor and buy the kit that includes the printer. Easy to prove your readings instead of writing down values on your invoices. ... show more
Reviewed in the United States on February 16, 2018 by August

  • GREAT TESTO METER
Style: No App Connection Size: Standard Set without Printer
Can use on homeowner and commercial applications
Reviewed in the United States on December 22, 2025 by Scott Justice

  • Easy to use...Fixed my furnace issues in 10 minutes.
Style: No App Connection Size: Standard Set without Printer
Easy to use.... but $$$. But sometimes you have no choice. I got this because I was having serious problems with my Gas Furnace and after 3 attempts with professionals ($$$$$) fiddling with the Gas Control without testing the exhaust, I ordered the the Analyzer. It took me roughly 10 Minutes to read the Manual and another 10 to set the combustion correctly. Great product... ... show more
Reviewed in the United States on April 5, 2022 by John Buser

  • Works great
Style: No App Connection Size: Standard Set without Printer
Works great. Had to buy the printer separate because they were out of kits. Maybe splurge and buy the one compatible with the app though
Reviewed in the United States on November 7, 2024 by Amazon Customer

  • Not Satisfied with the Testo 310 Analyzer Kit at All
Style: No App Connection Size: Standard Set without Printer
Received the Testo 310 Analyzer Kit on 1/18/25. Went through the manual and watched a couple of YouTube videos which were very helpful. Then the 310 Analyzer started taking 4 calibration cycles ending with an error code of E06 which means Sensor will be soon worn out > Contact Tesco Service. Should not have this issue with a new 310 Analyzer Kit. Emailed technical support on 1/22/25 and it is now 1/26/25 and have not received any response. Question the quality of the 310 Analyzer Kit and definingly the technical support which obviously has nowhere to be found. Will be returning the 310 Analyzer Kit. ... show more
Reviewed in the United States on January 27, 2025 by Keith

  • Top notch equipment
Style: No App Connection Size: Standard Set without Printer
Top notch equipment at the lowest price.
Reviewed in the United States on November 8, 2024 by Dale Gianforte

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