testo 300LL Longlife Flue Gas Analyser with Printer
O₂, CO H₂-compensated up to 30,000 ppm, NO can be retrofittedThe testo 300LL Longlife Flue Gas Analyser with Printer is a professional combustion analyser for boiler servicing, burner commissioning, high CO testing, and printed flue gas reporting.
How to Handle Demanding Combustion Testing with Longlife Sensors
When engineers work on commercial boilers, plant rooms, and demanding heating systems, sensor durability matters. The testo 300LL Longlife is built for regular professional use, helping reduce downtime caused by frequent sensor replacement.Longlife sensor technology supports reliable measurement performance across repeated service visits. This makes the analyser a strong choice for contractors, facilities teams, and combustion specialists who need dependable test equipment for busy maintenance schedules.
Why H₂-Compensated CO Measurement Improves Accuracy
High CO levels can be difficult to measure accurately, especially during poor combustion, burner faults, or commissioning work. The testo 300LL helps solve this with H₂-compensated CO measurement up to 30,000 ppm.H₂ compensation helps reduce the effect of hydrogen cross-sensitivity on CO readings. This gives engineers more reliable carbon monoxide data when checking appliance safety, adjusting burners, or investigating fault conditions.
Key measurement benefits include:
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O₂ measurement for combustion air assessment
- CO measurement with H₂ compensation up to 30,000 ppm
- Longlife sensors for reduced downtime
- CO₂, excess air, and efficiency calculation support
- NO measurement can be retrofitted if testing needs expand
How Printed Reports Support Professional Service Records
On-site printing helps engineers provide clear proof of combustion results immediately after testing. The integrated printer workflow is useful for customer handovers, maintenance files, compliance records, and planned service reports.Printed results reduce manual paperwork and help create a consistent record of boiler performance. This is especially valuable for commercial sites, landlord maintenance, and facilities management contracts.
Why Retrofittable NO Measurement Adds Flexibility
Testing requirements can change as engineers move into larger commercial, industrial, or emissions-focused work. The testo 300LL supports this by allowing NO measurement to be retrofitted when required.This makes the analyser a future-ready investment. Engineers can use it for core O₂ and high-range CO testing now, while keeping the option to expand into NO emissions measurement later.
Built for Professional Heating and Burner Work
The testo 300LL Longlife with Printer is suitable for gas and oil-fired appliances, commercial boilers, industrial burners, and plant room diagnostics.- Boiler servicing and commissioning
- High CO fault investigation
- Burner adjustment and optimisation
- Combustion efficiency checks
- Printed flue gas reports
- Future NO emissions testing with retrofit upgrade
