The Testo 300 Pro Commercial Combustion Analyzer Kit is a professional-grade combustion analyzer designed for commercial and industrial applications, featuring O2, CO, and NO sensors for precise measurement.
The Testo 300 Pro has been referenced in multiple industry reviews and technical evaluations for its high accuracy in flue gas analysis, with independent studies confirming its reliability in measuring combustion efficiency and emissions compliance. Customers consistently highlight its durability and ease of use, praising the intuitive Smart-Touch interface and fast-response sensors. The device is widely utilized for testing and tuning boilers, heaters, and furnaces across commercial buildings, industrial facilities, and maintenance services, providing trusted results for both routine inspections and detailed diagnostic work.
CO measurement ranges from 0 to 8,000 ppm and can be diluted up to 30,000 ppm. The model includes long-lasting sensors with a four-year warranty for O2 and CO, and a two-year warranty for NO. This kit comes complete with a printer and additional sensor slots, including an installed NO sensor.
Intuitive measurement menus and fast-response Smart-Touch display
Includes O2, CO H2-compensated sensor up to 30,000 ppm, testo Bluetooth® Connector, and NO sensor
In the kit: Next-Gen Testo 300 Pro combustion analyzer with O2 Long Life, CO H2-compensated Long Life sensor up to 30,000 ppm, testo Bluetooth® Connector, NO sensor, power adapter, modular flue gas probe, spare dirt filters, Bluetooth® printer, spare thermal paper, EasyHeat software, hard shell instrument case
Applications
Commercial
Combustion analysis
Testing and tuning all types of boilers, heaters, or furnaces
Draft
Temperature
Pressure
Combustion efficiency
Impressive measuring technology and quality
O2 sensor and H2-compensated CO sensor up to 30,000 ppm thanks to integrated fresh air dilution
testo Bluetooth® Connector (0554 3004)
NO sensor included
Longer sensor service life thanks to automatic sensor protection
Integrated draft and gas zeroing without removing the probe – the probe can remain in the flue during zeroing
For intensive daily use: high-quality Longlife sensors for O2 and CO with a service life of up to 6 years. That means at least one sensor replacement is saved during normal working life
Integrated fine pressure and 4 Pa measurement for legally prescribed measurements
Manufacturer's warranty of up to 5 years on O2 and CO sensor with product registration – without a maintenance contract
Versatile probes and fast probe changes: quick-change probes and multi-functional handle allow attachment of various probe shafts, including longer shafts for larger flue pipes or flexible probes for hard-to-reach locations
Optional probes and accessories available for additional tasks, such as gas flow pressure measurement, gas pipe testing, differential temperature measurement, and ambient CO measurement
Smart, intuitive, efficient: easy operation in day-to-day work
Smart-touch display for intuitive operation: fast response like a smartphone
Clearly structured measurement menus for faster results
Create documentation on site, including measuring values, location, and customer data
Save PDF reports directly in the instrument
Signature function for customer approval on-site
E-mail measurement reports directly via WiFi (hotspot)
Large 5-inch HD display for immediate parameter visibility
Testo interface function for direct transfer of measuring values to industry/customer-specific software*
Ready-to-use standby mode: measure immediately without waiting for zeroing
Integrated Bluetooth® interface for immediate printouts with compatible printer
*Note: the manufacturer must integrate an interface into industry software to use this function
Other advantages
10-hour rechargeable battery life: supports a full week of typical measurements
Integrated, strong magnets for easy attachment during measurements
Q&A
What types of sensors are included in the Testo 300 Pro kit?
The kit includes O2, CO H2-compensated, and NO sensors, all designed for long service life and accurate measurements.
Can the Testo 300 Pro measure high CO concentrations?
Yes, CO measurement ranges from 0 to 8,000 ppm and can be diluted up to 30,000 ppm for higher concentrations.
Is the analyzer suitable for commercial and industrial use?
Absolutely. It is designed for commercial and industrial combustion analysis, including testing and tuning boilers, heaters, and furnaces.
How long do the sensors last?
The O2 and CO sensors have up to 6 years of service life with automatic protection, while the NO sensor comes with a two-year warranty.
Does the kit include accessories for documentation?
Yes, it comes with a Bluetooth® printer, EasyHeat software, and the ability to create and save PDF measurement reports, including on-site signatures.
±0.9 °F (32.0° to 212.0 °F) / ±0.5 °C (0.0 to +100.0 °C)
±0.5 % of mv (Remaining Range)
Resolution
0.1 °F (-40° to 1831.8 °F) / 0.1 °C (-40 to +999.9 °C)
±1 °F (Remaining Range) / 1 °C (Remaining Range)
Differential Pressure
Measuring range
-40 to +80 InH₂O / -100 to +200 hPa
Accuracy
±0.2 InH₂O (0 to +20.0 InH₂O) / ±0.5 hPa (0 to +50.0 hPa)
±1 % of mv (+20.0 to +40.0 InH₂O) / ±1 % of mv (+50.1 to +100.0 hPa)
±1.5 % of mv (+40.0 to +80 InH₂O) / ±1.5 % of mv (+100.1 to +200 hPa)
Resolution
0.00 InH₂O / 0.01 hPa
Flue gas O₂
Measuring range
0 to 21 Vol.%
Accuracy
±0.2 Vol.%
Resolution
0.1 Vol.%
Flue gas COlow
Measuring range
0 to 500 ppm
Accuracy
±2 ppm (40 to +500 ppm)
±5 % of mv Remaining Range
Resolution
0.1 ppm
CO determination (with H₂-compensation),automatic dilution
Measuring range
0 to 30000 ppm
Accuracy
±100 ppm or ±10 % of mv
Resolution
1 ppm
Flue Gas NO
Measuring range
0 to 3000 ppm
Accuracy
±5 ppm (0 to 100 ppm)
±5 % of mv (101 to 2000 ppm)
±10 % of mv (2001 to 3000 ppm)
Resolution
1 ppm
Flue gas NOlow
Measuring range
0 to 300 ppm
Accuracy
±2 ppm (0 to +39.9 ppm)
±5 % of mv (40 to 300 ppm)
Resolution
0.1 ppm
Flue Gas Draft
Measuring range
-4.00 to +16 InH₂O / -9.99 to +40 hPa
Accuracy
±0.002 InH₂O (0 to 0.0 InH₂O) / ±0.005 hPa (0 to 0.1 hPa)
±0.01 InH₂O (0.0 to +1.20 InH₂O) / ±0.02 hPa (0.1 to +3.00 hPa)
±1.5 % of mv (+1.20 to +16 InH₂O) / ±1.5 % of mv (+3.01 to +40 hPa)
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