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testo 327 - Flue Gas Analyser (Standard Kit + gas leak detector)

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The testo 327 Standard Kit + Gas Leak Detector is a professional combustion analysis and gas safety package for heating engineers working on boilers and gas appliances. It combines flue gas measurement with gas leak detection to support safer installation, maintenance and fault-finding. It is ideal for boiler servicing, combustion and CO checks, and gas leak detection during service or repair work.
  • Standard Kit + Gas Leak Detector - including analyser, probe, gas leak detector, case, and power supply.
  • Measures O₂, CO, temperature, draught and pressure.
  • Calculates CO₂, efficiency and excess air directly on the analyser.
  • Reliable Gas Detection - quickly identify leaks with visual, audible, vibration alerts for enhanced safety.

testo 327 Standard Kit + Gas Leak Detector

The testo 327 Standard Kit + Gas Leak Detector combines flue gas analysis with gas leak detection for boiler servicing and gas safety checks.

How to Complete Combustion and Leak Checks in One Visit

When engineers need to test both boiler performance and gas installation safety, this kit helps complete more work with fewer tool changes. The testo 327 provides reliable combustion analysis, while the gas leak detector helps locate possible leaks around accessible pipework, valves, unions, meters, and appliance connections.
This combined workflow is useful during servicing, commissioning, repair work, and post-installation checks. Engineers can assess combustion quality, then move straight into gas leak detection before handing the appliance back to the customer.
The result is a more complete safety check during a single visit.

Why Gas Leak Detection Should Support Flue Gas Testing

A boiler may show acceptable combustion readings while the surrounding gas installation still has a leak risk. This kit helps solve that problem by combining two essential safety tasks.
The testo 327 helps identify combustion issues such as high CO, poor efficiency, and incorrect air supply. The gas leak detector adds another layer of protection by helping engineers check the wider installation.

The kit supports:
  • O₂ and CO measurement: Checks combustion quality and carbon monoxide risk.
  • Efficiency calculation: Helps confirm appliance performance.
  • Leak detection around fittings: Supports checks on joints, valves, unions, and appliance connections.
  • Real-world application: After replacing a gas valve, engineers can test combustion and check nearby connections for leaks before leaving site.

Solving Safety Risks During Boiler Servicing

Unnoticed gas leaks and poor combustion can create serious safety issues. This bundle helps engineers reduce risk by supporting both appliance testing and gas escape checks.
Combustion analysis helps verify that the boiler is burning correctly. Gas leak detection helps confirm that accessible pipework and fittings are not showing signs of leakage.
These workflows support professional gas safety practice and can be linked with relevant guidance such as BS 7967 for CO and combustion performance checks.

Streamlining Maintenance with Related Testo Accessories

Efficient maintenance is easier when analyser accessories and safety tools are connected within one toolkit. This kit can be supported with Testo replacement filters, flue gas probes, printer options, calibration services, and gas leak detector accessories.

Built for Safer Site Work

Engineers working across multiple properties need test equipment that helps them move quickly without missing key checks.
  • Combined testing: Flue gas analysis and leak detection in one package.
  • Practical site use: Suitable for domestic and light commercial work.
  • Clear readings: Supports faster servicing and diagnostics.
  • Accessory support: Works with related Testo service and calibration options.
testo 327 Flue Gas Analyser, gas leak detector, rechargeable battery and calibration protocol, Flue Gas Probe (180mm x 6mm diameter), soft carry case with shoulder strap, AC power supply.
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Testo Ltd
Newman Lane
GU34 2URAlton
HampshireUnited Kingdom
01420 544433

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