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0564 3004 12

testo 300+ Flue Gas Analyser standard kit - (O2, CO sensor up to 8,000 ppm)

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testo 300
Application testo 300 SE Longlife
The testo 300+ Flue Gas Analyser Standard Kit is a professional combustion testing package for heating engineers servicing and commissioning boilers. It delivers accurate flue gas measurements through an intuitive digital interface, helping users assess performance, safety and efficiency on site. It is ideal for boiler servicing and commissioning, combustion efficiency checks, CO safety testing and service documentation.
  • Designed for domestic boiler service, 8,000ppm H2 compensated CO sensor and O2 sensor 
  • O₂ and H₂-compensated CO sensor up to 30,000 ppm.
  • CO sensor and O2 sensor fitted with 5 year lifespan
  • NO measurement can be retrofitted for future emissions testing.
  • Connect up to 4 testo Smart Probes for wireless parallel measurement.

testo 300+ Flue Gas Analyser Standard Kit

The testo 300+ Standard Kit is a professional flue gas analyser package for boiler servicing, commissioning, and everyday combustion testing.

How to Complete Reliable Boiler Servicing with One Essential Kit

When engineers need a ready-to-use combustion analyser package, the testo 300+ Standard Kit provides the essential setup for daily heating work. It supports accurate boiler testing, burner adjustment, and routine flue gas analysis across domestic and commercial applications.
The kit helps engineers confirm that appliances are operating safely and efficiently. Clear measurement values make it easier to assess combustion performance, identify faults, and complete service checks with confidence.
The standard kit format is ideal for engineers who want a practical analyser package without building a setup from individual components.

Why Accurate Flue Gas Analysis Helps Prevent Heating Faults

Poor combustion can lead to high carbon monoxide levels, poor efficiency, repeated faults, and increased emissions. The testo 300+ helps engineers detect these issues through reliable combustion measurement.

When used with the correct probes and setup, the analyser supports:
  • CO and O₂ measurement: Helps assess combustion safety and air-to-fuel ratio.
  • Flue gas temperature checks: Supports efficiency and heat transfer assessment.
  • Draught and pressure measurement: Helps verify flue and appliance performance.
  • Calculated values: CO₂, excess air, and efficiency support clearer diagnostics.
  • Real-world application: After servicing a boiler, engineers can check readings, adjust burner settings, and confirm improved performance before leaving site.

Solving Service Workflow Challenges

Busy engineers need tools that make testing clear and efficient. The testo 300+ Standard Kit supports fast access to essential combustion values, helping reduce time spent navigating complex menus.
This supports more consistent service visits. Engineers can test, diagnose, and document appliance performance more efficiently across multiple jobs.

Streamlining Reporting and Accessory Compatibility

The testo 300+ Standard Kit can be used with compatible Testo probes, replacement filters, printer options, consumables, and calibration services. It also links naturally with gas leak detectors, pressure testing kits, differential pressure meters, and digital thermometers.

Built for Everyday Heating Professionals

The testo 300+ Standard Kit is designed for reliable professional use.
  • Essential kit format for daily boiler work
  • Suitable for domestic and commercial heating systems
  • Supports combustion checks and efficiency testing
  • Compatible with selected Testo accessories and service options
  • testo 300+ flue gas analyser with O2 and CO sensor up to 8,000 ppm (0633 3004 40)
  • USB mains unit, including cable (0554 1105)
  • Compact basic flue gas probe, 180 mm; Ø 6 mm; Tmax. 500°C; 1.5 m hose; including cone for fixing (0600 9740)
  • testo Bluetooth connector (0554 3004)
  • soft-case style Instrument bag (0516 3001)
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Newman Lane
GU34 2URAlton
HampshireUnited Kingdom
01420 544433

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