Testo 320 Combustion Analyzer Kit for Residential and Commercial Applications

Model320 MFG Part0563 3220 70
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Testo 320 Combustion Analyzer Kit for Residential and Commercial Applications

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Testo Fall 2017 Promotion!

Purchase any Testo 320 Combustion Analyzer and receive one additional year of sensor warranty plus a FREE Testo 770-3 Hook Clamp Meter. Offer valid through December 31, 2017. Details and Redemption Form - click here...

Testo 320 Combustion Analyzer (Mfg.part 0563 3220 70) is a top of the line flue gas analyzer for residential and light commercial applications with a high definition color display that provides quick and easy to understand analysis of various combustion appliances. Testo 320 Flue Gas Analyzer provides comprehensive combustion analysis options including O2, CO, CO2, Ambient/room CO, CO Air free and many others. Made in Germany. Ground Shipping Free in Continental US. Testo 320 Review >

Available with printer - Testo 320 model 0563 3220 71  or buy only Printer for Testo 320

Characteristics: Testo 320 Flue Gas Analyzer 0563 3220 70 for Residential and Commercial
The Top 5 Reasons to Choose a Testo 320: Accurate measurements with integrated NOx filters
Industry leading CO sensor protection
Continous temperature compensation
Exceptional moisture and water control
Superior sampling hose
  Measures CO from 0-4000 PPM
  Pump shuts off when accidentally over-exposed
  Auto-rinses during the shut-down process in
order to purge harmful gases from the system
  Teflon lined hoses resist kinking, fraying, and splitting.
Improves longevity, fast response times, and no air leaks.
  Intuitive water trap without the need to disconnect the hoses
  Audible alarm indicates when water trap is full
  Temperature compensation and aggressive NOx filtration for accurate readings
  High definition graphic display is easy to read and simple to understand
  Intuitive "traffic light" style indicator provides sensor diagnostics and monitoring
  Rugged rubberized housing is built to withstand jobsite abuse
  Just 30 seconds to start up and get testing
  Rechargeable lithium batteris provide enough energy to work all day
  Powerful magnets in the housing allow for hands-free operation
  Quick exchange probe filters are easy to replace and ensure accurate measurement
  Can store up to 500 tests and print on site with optional printer
  Operation is leak free with hardened cam-lock fittings
  Field replaceable and pre-calibrated typically last up to 3 years
  A variety of optional additional probes provide a wide range of testing options
  Simple icons and push button navigation make menu use easy
  Quick drain condensate trap helps protect the sensor’s integrity
  Optional Easyheat software allows for easy data managment and report generation
  Transfer data easily and securely through the USB port (with optional Easyheat software) or Bluetooth to a PC, printer, or other hardware

Pre-calibrated sensors

Typically last more than three years. Sensors are field repplaceable and pre-calibrated


Hardened cam-lock fittings provide leak-free operation and greater test confidence
Combustion analysis • O2, CO, CO2, Ambient/room CO, CO Air free
• CO sensors with NOx filter
• Flue Draft, Pressure (vent or duct or switches)
• Temperature (flue & room)
• Combustion Efficiency, Excess air
• Flue Gas Matrix (w/ four user-defined combustion types)
• Oil flow and gas clock BTU calculator
• Memory to 500 readings plus customer site information
• Optional probes for:
- Fine pressure, Gas Leak, Ambient CO2 (IR), Ambient CO air, draft, pressure, differential temperature
Whats Included in the Box Testo 320 analyzer, probe & hose, extra particulate filters (10), AC power supply/recharger (USB), calibration certificate, rugged hard case
Warranty: Measuring instrument: 24 months
O2 sensor: 24 months  
CO sensor: 24 months
CO sensor with H2 comp.: 24 months
CO/H2 low sensor (TCHL): 24 months
Flue gas probe: 24 months
Thermocouple: 12 months
Rechargeable battery: 12 months

Testo 320 Combustion Analyzer (Mfg. part 0563 3220 70) is a top of the line combustion analyzer with a high definition color display that provides quick and easy to understand analysis of various combustion appliances. Testo 320 provides comprehensive combustion analysis options including O2, CO, CO2, Ambient/room CO, CO Air free and many others. Testo 320 also features the "flue gas matrix" option which uses four different user defined combustion types and displays them graphically.

The Testo 320 Flue Gas Analyzer measures CO from 0 to 4,000 PPM, uses an innovative pump shut-off in order to protect the analyzer during accidental over-range exposure, and an auto-rinse during the shut-down process - both features help to improve the life-span of the device and sensors. The Testo 320's hoses are Teflon-lined in order to resist kinking, fraying, and splitting. This also equates to longer longevity of the hoses and excellent sample response times. The Testo 320's water traps are far more intuitive than most, with no need to disconnect and drain your hoses. The Testo 320 Flue Gas Analyzer even has an alarm to indicate when the water trap is full. The Testo 320 Combustion Gas Analyzer aggressively filters out NOx to ensure only the most accurate readings, and works over a wide range of temperatures with its continuous and fast temperature compensation.

Ground Shipping Free in Continental US.

Specifications: Testo 320 Combustion Gas Analyzer 0563 3220 70 
Parameter Range Accuracy
O2 measurement 0 to 21 vol.% ±0.2 vol.%
CO measurement 0 to 4000 ppm ±20 ppm (0 to 400 ppm)
±5% of m.v. (401 to 2000 ppm)
±10% of m.v. (2001 to 4000 ppm)
Temperature -40° to 2192 °F ±2 °F (32° to 212 °F)
±0.5% of m.v. remaining range
Draft measurement -4 to 16 "H2O ±0.008 "H2O or
±5% of m.v. (at -0.2 to +0.2 "H2O)
±0.01"H2O (at 0.2 to 1.2 "H2O)
±1.5% of m.v. (at 1.2 to 16 "H2O)
Pressure measurement 0 to 120 "H2O ±0.2 "H2O (0.0 to 20 "H2O)
±1% of m.v. (at 20 to 40 "H2O)
±1.5% of m.v. (at 40 to 120 "H2O)
Efficiency testing 0 - 100% calculated
Excess Air 0 - 99% calculated
CO2 calculation
(digital calculation from O2)
0 to CO2 max calculated
Ambient CO measurement
(with CO probe)
0 - 500 ppm ±5 ppm (0 to 100 ppm)
±5% of m.v. (>100 ppm)
Gas leak measurement
for combustible
gases (with gas leak
detector probe)
0 to 10,000 ppm
CH4 / C3H8
Optical display (LED)
Ambient CO2 measurement
(with ambient
CO2 probe)
0 to 1 vol. %
0 to 10,000 ppm
±50 ppm or
±2% of m.v.
(0 to 5000 ppm)
±100 ppm or
±3% of m.v.
(5001 to 10000 ppm)
Includes: testo 320 combustion analyzer
with rechargeable battery, 12" probe with
cone & hose assembly, AC power supply
(with USB recharging), and rugged case 
Instrument/probes/gas sensors: 24 mos.
Rechargeable battery: 12 mos. 
Applications: Testo 320 Combustion/Flue Gas Analyzer 0563 3220 70
  Residential and commercial furnaces, boilers and water heaters
  Testing and tuning of all types of boilers, heaters or furnaces
  Excellent tester for set up and commission more complex multi-stage, or modulating heating systems
Specs and Videos

Technical Specs for Testo 320 Combustion Analyzer Kit for Residential and Commercial Applications:

View FileThe Top 5 Reasons to Choose a Testo Combustion Analyzer    Size: (5.47 MB)
View FileTesto 320 Combustion Analayzer    Size: (2.87 MB) Testo 320 Combustion Analayzer


Watch video about Testo 320 Combustion Analyzer Kit for Residential and Commercial Applications:

Customer Reviews

use this all the time Review by boilerman

spend most of my time using this whenever i set up new boilers. testo nailed it with the ease of use although im not necessarily a huge fan of the casing. doesnt take away from the operation though.

(Posted on 9/22/2016)

analyzer Review by Andres Joseph

Very intuitive to use. Makes work easy as i don't have to babysit the unit while it works.

(Posted on 9/15/2016)

Testo Quality Review by Carlos Price

This is a very solid analyzer from Testo. Same quality that i expect from them and the updated color screen is great. Takes the standard O2 and CO measurements you need and has an option to add additional probes to expand later.

(Posted on 10/3/2014)

love it Review by Random name generator

One of the guys i work with had one of these and always ra ves about it. I finally picked one up and man i can see why. Great display and the menu is super easy to use. Setting up the tests is a breeze and the machine is accurate as hell. easy recommendation.

(Posted on 9/25/2014)

Expertly Designed Review by Tommie Briggs

I am very impressed with Testo's 320 Analyzer. It has an easy to read sensor diagnostic that lets me know when its time to replace. Very detailed color screen as well and the magnetic housing keeps me hands free to work more efficiently. Easy recommendation.

(Posted on 9/24/2014)

solid analyzer Review by Hugh Fowler

Very impressed with this unit. Saw it at a trade show and was able to put my hands on it. Really sold it for me. Navigation menu and large buttons make it easy to use with gloves on.

(Posted on 8/29/2014)

External Probes Review by SUREthing

Being able to add external probes to your combustion analysis results is nice. I picked up the probe for ambient CO for some extra money and it makes me and the customer's feel safer being able to constantly monitor CO levels while checking combustion. No mistakes.

(Posted on 11/22/2013)

perfect for me Review by Trentris

easy to use navigation with few buttons. I dont like a lot of buttons and this has less than 10. good with me

(Posted on 11/20/2013)

Free Bag Review by James

Just got the unit. Works great. Free bag is nice add on. On it's way in the mail.

(Posted on 11/15/2013)

Free Vito Bag is a bonus Review by Edvald

Love my testo 320, great quality you would expect and the new display is cool. Always wanted a Vito bag and now I get it for free. Merry Christmas to me.

(Posted on 11/13/2013)