testo 300+ Flue Gas Analyser Handset Only
The testo 300+ Flue Gas Analyser Handset Only is the core analyser unit for engineers who want to replace, upgrade, or build a custom combustion testing setup.How to Upgrade Your Flue Gas Testing Setup Without Buying a Full Kit
When heating engineers already own compatible probes and accessories, replacing the full analyser kit is not always necessary. The testo 300+ handset-only option lets you upgrade or replace the main analyser unit while continuing to use suitable existing Testo accessories.This is useful for service teams, facilities engineers, and contractors who want flexibility. Engineers can build a tailored flue gas analyser setup around their own testing needs, rather than buying duplicate probes, cases, or chargers.
The handset-only format also supports fleet standardisation. Businesses can keep engineers working on the same testo 300+ platform while selecting accessories separately for domestic, commercial, or plant room work.
Why a Modern Analyser Interface Improves Boiler Servicing
Clear measurement data helps engineers work faster and make better decisions during boiler servicing and commissioning. The testo 300+ handset is designed to support combustion analysis workflows with a modern interface and straightforward navigation.When used with compatible probes and sensors, the analyser supports key flue gas testing tasks such as CO, O₂, flue gas temperature, draught, pressure, and calculated values. These measurements help engineers identify poor combustion, high CO levels, incorrect air supply, and efficiency issues.
Key benefits include:
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Handset-only flexibility: Ideal for replacement or custom kit building.
- Modern display and navigation: Supports faster on-site operation.
- Compatible accessory ecosystem: Works with selected Testo probes and sensors.
- Real-world application: Replace a damaged handset while keeping existing working probes and accessories in use.
This is especially useful for businesses with multiple engineers. Spare handsets can help keep teams operational when accessories are already available.
Streamlining Your Testo Toolkit
The testo 300+ handset can be linked with compatible flue gas probes, temperature probes, pressure accessories, chargers, protective cases, printer options, and calibration services. It also fits well alongside gas leak detectors, differential pressure meters, digital thermometers, and wider HVAC diagnostic instruments.Built for Flexible Professional Use
The testo 300+ Handset Only is ideal for engineers who want a flexible replacement or upgrade route.- Handset-only supply for custom setups
- Suitable for domestic and commercial heating workflows
- Compatible with selected Testo accessories
- Supports combustion testing, diagnostics, and reporting workflows