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

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testo 300
Application testo 300 SE Longlife
Application testo 300
testo 300
testo 300
Application testo 300
testo 300
testo 300
testo 300
The testo 300+ Flue Gas Analyser Ultra Smart Kit is a premium connected combustion testing package for engineers who need advanced diagnostics and efficient digital reporting. It supports accurate flue gas analysis, streamlined workflows and reliable documentation for demanding heating applications. It is suited to advanced boiler servicing, emissions and compliance checks, smart diagnostics, CO safety testing and digital reporting.
  • 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.
  • NO measurement can be retrofitted for future emissions testing.
  • CO sensor and O2 sensor fitted with 5 year lifespan
  • Connect up to 4 testo Smart Probes for wireless parallel measurement.
  • Easy detection of leaks with the testo combustible gas leak detector.

testo 300+ Flue Gas Analyser Ultra Smart Kit

The testo 300+ Ultra Smart Kit is an advanced connected flue gas analyser package for professional combustion testing, diagnostics, and reporting.

How to Handle Advanced Combustion Testing with a Connected Kit

When engineers need a high-capability analyser setup, the testo 300+ Ultra Smart Kit supports demanding service, commissioning, and diagnostic work. It is designed for professionals who need accurate combustion readings plus smarter data handling.
The ultra smart kit format helps engineers work across domestic, commercial, and light industrial heating systems. It is especially useful when combustion analysis, system diagnostics, and reporting need to be completed efficiently during one visit.
Clear data helps engineers understand appliance performance and confirm that adjustments have improved the system.

Why Advanced Smart Testing Helps Reduce Costly Faults

Poor combustion, high CO, unstable burner performance, and flue issues can cause safety risks and repeat callouts. The testo 300+ Ultra Smart Kit helps engineers find these problems using reliable measurement data.

The kit supports:
  • CO and O₂ measurement: Helps assess combustion safety and fuel-air balance.
  • Temperature measurement: Supports performance and efficiency checks.
  • Draught and pressure support: Helps diagnose flue and system issues.
  • Efficiency calculations: Supports clear evidence of appliance performance.
  • Real-world application: During commercial heating maintenance, engineers can test combustion, diagnose poor performance, and support reporting from one advanced analyser setup.

Solving Complex Site and Reporting Challenges

Larger sites and commercial heating systems often require clearer documentation and more detailed checks. The testo 300+ Ultra Smart Kit supports structured measurement workflows, helping engineers capture and manage test data more consistently.
This is useful for planned maintenance, contractor reporting, and facilities management records. It helps reduce manual errors and supports a more professional customer handover.

Streamlining Advanced Test Equipment

The testo 300+ Ultra Smart Kit works within the wider Testo ecosystem. It can be supported with compatible probes, printer accessories, replacement filters, consumables, calibration services, and protective cases.

Built for Engineers Who Need More Capability

The testo 300+ Ultra Smart Kit is ideal for professionals who need an advanced analyser package.
  • Ultra smart format for demanding workflows
  • Suitable for domestic, commercial, and light industrial heating
  • Supports combustion testing, diagnostics, and reporting
  • 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)
  • 1 x testo 510i Smart probe manometer (0560 1510)
  • 2 x testo 115i Smart probe pipe clamp thermometers (0560 2115 02)
  • 1 x testo combustible gas leak detector
  • testo Bluetooth connector (0554 3004)
  • soft-case style Instrument bag (0516 3001)

CO probes

Flue gas probes

Further probes

Temperature probes

Flue gas measurement on heating systems

Ideal for measurements involving heating systems:
  • high-quality sensors, smart-touch operation, clearly structured measurement menus, creation of documentation on site, e-mailing of reports, large HD display, robust housing
Further areas of application:
  • gas flow pressure measurement*, gas pipe test*, differential temperature measurement (flow and return temperature on heating systems)*, ambient CO measurement*, flue draught measurement on heating systems*
* Please note: additional probes or accessories are required for these measurements and have to be ordered separately.
 
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HampshireUnited Kingdom
01420 544433

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