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TPI 708A740 Combustion Analyzer Kit with Printer

TPI 708A740
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708 and A740


  • Measure CO, and temperature;
  • Calculate CO2, efficiency, excess air, and CO air free;
  • Pump driven for fast response;
  • Will not shut off if 15 ppm CO is present for increased safety;
  • Ten selectable fuels: Natural Gas, LPG, Light Oil, Heavy Oil, Bituminous Coal, Anthracite Coal, Coke, Butane, Wood, Bagasse;
  • Optional A740 IR printer available for hard copies of test results;
  • Built-in differential thermometer;
  • Store function to save up to 50 readings;
  • Large easy to read backlit display;
  • Tuning of residential and furnaces and domestic boilers;
  • Ambient and stack testing for CO;
  • CO safety measurements in and around combustion sources;
  • Temperature checking, including superheat and hydronic differential temperatures;
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List Price: $649.95
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Product Name Style (Gas Detection) O2 CO Availability Price  
708 and A740
Hand-Held Yes Yes
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Edu Price Standard Price Gov't Price
Combustion Efficiency Analyzer with flue probe only
Hand-Held Yes Yes Availability
in stock!
Edu Price Standard Price Gov't Price
708 with 621, A788, A790, A740
Hand-Held Yes Yes Availability
in stock!
Edu Price Standard Price Gov't Price

Product Information

The TPI 708A740 Combines the 708 Combustion Efficiency Analyzer with the A740 Infrared Printer - TPI Model 708 Combustion Efficiency Analyzer. The carbon monoxide sensor used in TPI combustion efficiency analyzers feature an on-board filter capable of filtering NO (nitric oxide), NO2 (nitrogen dioxide) and NOX (combination of NO and NO2) to prevent cross sensitivity errors.

The TPI A740 Infrared Printer is compatible with the 700 Series Analysers, 1000 Series Indoor Air Quality Meters and 665 Data Logging Manometer.

Use TPI analyzers to test flue gases in gas and oil fired equipment including high efficiency furnaces and condensing boilers. Measure CO, O2, and stack temperature.

Determine combustion efficiency, CO2, and CO air free. Some models include built-in differential manometer, combustible gas detection, PC communication, data logging, and can measure NO / NOX.

All TPI analyzers feature quick and simple set up. Fast purge and the ability to perform fuel selectionduring start up enable tests to be performed quickly without requiring extra set-up time after initial startup. TPI analyzers also use the last selected fuel as the default setting. This feature prevents the need toperform fuel selection every time the analyzer is turned on.

Using TPI analyzers to determine combustion efficiency at the time of equipment set up minimizes call backs and can be used to verify to the home owner the value of service work by showing the increase in equipment efficiency after work is performed. Efficiency calculation can also be used to generate business by demonstrating the need to improve the efficiency of equipment or to show the benefit of purchasing new equipment with higher efficiency.

What's In The Box

  • Infrared printer (A740);
  • Rubber Boot (A765);
  • Soft Carrying Case (A768);
  • Flue Sampling Probe (A770);
  • In-Line Filter assembly installed on Flue probe (A794);
  • Temperature Probe (GK11M);
  • Mini Pump Protection Filter Assembly and spare filters (A763);
  • Exhaust Spigot (removable) (A764);
  • Instruction Manual;


Specifications TPI 708A740 Combustion Analyzer Kit with Printer
Gases Range Resolution Accuracy
Oxygen 0-25% 0.1% +/- 0.3%
Carbon Monoxide 0-10,000 ppm 1 ppm +/- 5 ppm or 5%
Carbon Dioxide 0-25% 0.1% Calculated
CO/CO2 Ratio 0-0.999 0.001 Calculated
Combustion Eff. 0-100% 0.1% Calculated
Temperature Measurement
Input Type K-Type thermocouple  
Range -58°F to 1832°F (-50°C to 1000°C)
Resolution 1°F (1°C)
Accuracy +/- (0.3% of rdg + 2°F) or +/- (0.3% of rdg + 1°C)
Operating Temperature Range 14°F to +122°F (-10°C to +50°C)
Battery / Batery Life AA (3) / > 6 Hours
Fuels Natural Gas, LPG, Light Oil, Heavy
Oil, Bituminous Coal, Anthracite
Coal, Coke, Butane, Wood, Bagasse
Display 3 Line Backlit LCD w/ annunciators
Data Storage 50 sets of readings
Time & Date 24 Hour Real Time Clock
Dimensions 7.8” x 3.5” x 2.4”
Weight 1.1lbs
Specifications TPI A740 Infrared Printer
Maximum Transmitting Distance 18 inches (45cm)
Maximum Horizontal Receiving Angle ±30°
Vertical Receiving Angle -10° to + 20°
Battery Power 4 x 1.5V Alkaline battery
Adapter DC 7V / 1500mA, 50Hz, 240V (CE)
DC 9V / 1A, 60Hz, 120V (CUL)
Paper A746
Operating Temperature 32° to 122°F (0° to 50°C)
Operating Humidity 5% to 80% RH
Storage Temperature 14° to 140°F (-10° to 60°C)

TPI 708A740 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)No
Combustion EfficiencyYes
HC (Methane Equivalent Combustables)No
Printing CapabilityYes
EPA/ETV Test VerifiedNo
CO Resolution1 PPM
LCD ScreenYes
CO PPM Minimum1 PPM
CO PPM Maximum10000 PPM
Temperature Operating Min14 F (14 Degrees)
Temperature Operating Max122 F (122 Degrees)
Report GenerationYes

Test Equipment General Attributes

Unique Featureskit includes IR printer (A740)
Warranty3 YEARS
Warranty Details3 year warranty instrument, 2 years on sensors
Additional Info/Comments0-10,000 PPM CO with +/- 5 ppm accuracy
Calibration IncludedFactory Calibration
Power Supply VoltageBattery Powered
Data Logging What's This?No 
Interfaces I/O IR
StorageHard Drive
Product Weight500 GRAMS (1.10 LBS)
Battery TypeAA
Product Height90 MM (3.54 IN)
Product Length200 MM (7.87 IN)
Product Width60 MM (2.36 IN)
Shipping Weight7.2 LBS
ECCN NumberEAR99
HTS/Schedule B Number9027.10.0000
Country of OriginKorea


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