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Testo 320 Combustion Analyzer Kit with Printer (0563 3220 71)

Catalog #: 0563 3220 71
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320 Residential / Commercial Analyzer Kit (with printer)
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  • Model 320 combustion analyzer kit
  • This package includes a printer
  • Part number 0563 3220 71
  • Field-replaceable, pre-calibrated sensors for accurate analysis
  • Internal memory stores up to 500 combustion system analysis tests
  • Hardened cam-lock probe connection guarantees leak-free operation and confidence of readings
  • Fast 30-second startup so you can get tested quickly
  • Bright, color graphic display
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List Price: $1,495.00
Sale: $1,345.50
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Product Name Style (Gas Detection) O2 CO Availability Price
320 Residential / Commercial Analyzer Kit (with printer)
Hand-Held Yes Yes Edu Price Standard Price Gov't Price
320 Residential / Commercial Analyzer Kit
Edu Price Standard Price Gov't Price

Testo 320 Combustion Analyzer Kit with Printer (0563 3220 71)

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Product Information

Testo 320 Combustion Analyzer Kit with Printer (0563 3220 71)


Combustion analysis in high definition is more than just a brilliant display. It’s a combination of proven measurement standards, contractor-rugged design, and Testo’s innovation. The result - testo 320 - makes combustion analysis easier to perform, easier to control, and easier to understand.

The 320 is designed for the job site and for the contractor that expects more. Use it for basic testing and tuning of all types of boilers, heater or furnaces. Use it to set up and commission more complex multi-stage, or modulating heating systems. Combustion analysis, draft, temperature, pressure, combustion efficiency and a host of other calculations and functions - all shown in vivid color. With simple icon navigation, you soon realize it will do more for HVAC testing.


Testo 320 Combustion Analyzer

  • O2, CO (with built-in NOx filter), CO2
  • Combustion calculations
  • Draft
  • Pressure
  • Flue gas matrix
  • User-changeable, pre-calibrated sensor

With the testo 320 you gain more testing flexibility giving you more customer opportunities and greater profit potential. It provides all the parameters listed, plus the capabilities shows in the following pages.

Designed for the job site and the needs of a busy contractor. The testo 320 gives you a wider measurement range that lets you test not only controlled or normal combustion applications but those that have problems. With a CO measurement range up to 4000 ppm (or optional 8000 ppm) you can test more combustion appliances.

CO sensor with integrated NOx filter.

The testo 320 eliminates the guess work and provides accurate readings. Integrated NOx filters assure you of the highest CO measurement accuracy, unlike other analyzers that add the NOx concentration to the CO measurement displayed. Whether you are measuring combustion, air free, or ambient CO – you need to make the decision on a correct measurement.

Testo 320 Combustion Analyzer

Faster, Easier, More Accurate.

Innovative features like the “flue gas matrix” will graphically display the combustion characteristics. This is an easy way show if the heating system is running e ciently “in the green” or wasteful and unsafe “in the red.” Simply make adjustments to the heating system until the cross-hair is “in the green” zone. Clever functions like this give you more information for easier adjustments and set-up.

The testo 320 makes your job easier by displaying two to eight user-defined parameters. With 8 parameters you see all the measurements simultaneously. No need to scroll up and down chasing the measurements and double guessing.

Magnets on the back of both the analyzer and the printer attach in a secure and convenient spot. The printout documents the results with your company’s contact information. This helps to remind your customer who to call for their next cleaning or yearly service check. easyHeat software (optional) can help schedule jobs and print reports with your company’s logo for a professional look. The testo 320 combines many combustion tools into one rugged package for faster combustion analysis so you can focus on growing your business.

Gas leak detection

The gas leak probe allows you to safely identify gas leaks. The results can be stored and documented. The test results are displayed in ppm.

Draft and Pressure measurement

Critical for proper combustion performance is the draft measurement to determine if flue gases are flowing correctly. With the simultaneous flue gas temperature displayed, you know if the probe is positioned properly. The pressure measurement gives you the flexibility to test a variety of flow pressures in lines and switches.

Ambient CO measurement

The 320’s ambient CO function (or optional probe) will display results graphically and sound audible alarms when levels are unsafe (user-defined levels). The optional CO probe can also be used for simultaneous measurement of flue gas and ambient CO.

Differential Temperature

This option measures the difference between the outgoing and return line temperatures. This provides critical information for flow rate adjustments and compliance with boiler specifications.

Data management for combustion analysis

An infared printer or optional Bluetooth printer is available for the testo 320, for printing out measurement values on site. The testo 320 has built-in memory that can save up to 500 measurements.

Easyheat software option

easyheat software simplifies the management and archiving of your valuable customer data and measurement values on a laptop at the job site or on a PC at home. With easyheat, you can create customized individual reports.

You can transfer your data easily and securely through the USB port or Bluetooth (factory installed option) to a PC, printer, or other hardware Thanks to easyheat software.

Wide variety of probes for any application

The testo 320 has a probe available for almost any measurement. Well-designed cam-lock couplings assure leak free operation and quick changes. Simply click in various lengths and diameters to fit different flue or stack configuration. Additional probes like the gas leak, ambient CO, CO2, and the fine pressure probe provide more job site testing flexibility.
  testo 310 testo 320 testo 330-1G / -2G LL
CO Sensor (0 - 4,000 ppm) with integral NOX filter
O2 Sensor (0 - 21%)
CO, O2 Sensor Life 2 yrs. 2 yrs. 4 yrs.
Field Replaceable sensors  
Built-in Condensate trap with clear polymer window
Condensate trap with Level Sensor, LED alarm and display indication  
Detachable probe  
Metal hose connection, Bayonett cam lock  
User settable automatic pump shut-off for CO over range  
Draft / Pressure measurement plus Differencial Pressure Draft only
Pre-programmed fuels 5 20 20
Internal storage capacity (# of complete tests)   500 500,000
Color Graphic Display with backlighting / zoom Numeric
Warranty - Instrument and O2 and CO sensors 2 yrs. 2 yrs. 4 yrs.
Bluetooth option with free Android App  

What's In The Box

  • 320 combustion analyzer
  • Rechargeable battery
  • 12 inch probe with cone and hose
  • AC power supply (with USB recharging)
  • IR Fast printer
  • Spare particulate filters (10)
  • Six rolls of long life thermal paper
  • Rugged case


Measurement ranges and resolution
Measurement parameter Measuring range Resolution
O2 0 to 21 Vol.% 0.1 vol.%
CO 0...4000 ppm 1 ppm
CO, H2-comp. 0 to 8000 ppm 1 ppm
COlow, H2-comp. 0 to 500 ppm 0.1 ppm
Draught -9.99 to 40.00 hPa 0.01 hPa
Fine draught -9.999 hPa to +40.000 hPa 0.001 hPa
ΔP (only with gas pressure set 0554 1203) 0 to 300 hPa 0.1 hPa
Fine pressure (only with gas pressure set 0554 1203) 0 to 300 hPa 0.01 hPa
temperature -40 to 1200°C 0.1°C (-40.0 to 999.9°C); 1°C (from 1000°C)
Efficiency 0 to 120 % 0.1 %
Flue gas loss 0 to 99.9 % 0.1 %
Accuracy and response time
Measurement parameter Accuracy Response time (t90)
O2 ±0.2 vol.% < 20 s
CO ±20 ppm (0 to 400 ppm)
±5% of meas. val. (401 to 2000 ppm)
±10% of meas. val. (2001 to 4000 ppm)
< 60 s
CO, H2-comp. ±10 ppm or ±10% of meas. val.2 (0 to 200 ppm)
±20 ppm or ±5% of meas. val.2 (201 to 2000 ppm)
±10% of meas. val. (2001 to 8000 ppm)
< 40 s
COlow, H2-comp. ±2 ppm (0 to 39.9 ppm)
±5% of meas. val. (rest of range)
< 40 s
Draught ±0.02 ppm or ±5% of meas. val.2 (-0.50 to 0.60 hPa)
± 0.03 hPa (0.61 to 3.00 hPa)
±1.5% of meas. val. (3.01 to 40.00 hPa)
Fine draught ±0.02 ppm or ±5% of meas. val.2 (-0.50 to 0.60 hPa)
± 0.03 hPa (0.61 to 3.00 hPa)
±1.5% of meas. val. (3.01 to 40.00 hPa)
ΔP (only with gas pressure set 0554 1203) ± 0.5 hPa (0.0 to 50.0 hPa)
±1% of meas. val. (50.1 to 100.0 hPa)
±1.5% of meas. val. (rest of range)
Fine pressure (only with gas pressure set 0554 1203) ± 0.5 hPa (0.0 to 50.0 hPa)
±1% of meas. val. (50.1 to 100.0 hPa)
±1.5% of meas. val. (rest of range)
temperature ± 0.5°C (0.0 to 100.0°C)
±0.5% of meas. val. (rest of range)
depending on the probe
Efficiency - -
Flue gas loss - -

Testo 320 PRINTER KIT Product Specifications Summary:
(for full specs please see the full specs tab or the data sheet)

Gas Detection/Combustion Gas Analyzer/Environ Analyzer Template

Style (Gas Detection)Hand-Held
Primary Air TemperatureYes
Stack TemperatureYes
Pressure (Draft)Yes
Combustion EfficiencyYes
HC (Methane Equivalent Combustables)No
Printing CapabilityYes
CO Resolution0.1 PPM
CO PPM Minimum0 PPM
CO PPM Maximum500 PPM
O2 PPM Minimum0 PPM
Temperature Operating Min-4 F (-4 Degrees)
Temperature Operating Max122 F (122 Degrees)
Software OptionYes
Report GenerationYes

Test Equipment General Attributes

Warranty2 YEARS
Warranty Details2 years: Instrument/probes/gas sensors
1 year: Rechargeable battery
Calibration IncludedFactory Calibration
Power Supply VoltageBattery Powered
Safety ApprovalCE
Interfaces I/O IR, USB
StorageInternal Memory
IP Rating What's This?IP40
Product Weight1.3 LBS
Battery TypeLi-ion
Product Height9.5 IN
Product Length3.3 IN
Product Width2.5 IN
Country of OriginGermany



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