Testo Multi-hole Probe Shaft, 7-inch, 0.32-inch Diameter

This Testo multi-hole probe shaft is built for technicians who need precise mean CO readings from flue gases. It’s an essential accessory for combustion analysers, helping you dial in efficiency and meet regulatory standards on industrial or commercial systems.

When you're commissioning a new boiler or fine-tuning an older one under varying loads, getting an accurate average CO is non-negotiable for safe, efficient operation. This shaft helps get the job done right across Australia's varied climate demands.

Best For

• Combustion analysis technicians
• Boiler and burner service specialists
• Industrial HVAC and refrigeration maintenance teams
• Anyone needing averaged CO readings for system optimisation

Compatibility

This multi-hole probe shaft is designed to integrate with compatible Testo combustion analysers that support external probes, specifically those requiring mean CO calculation capabilities. It connects to an existing probe handle and hose assembly. If you're running a different model, check fittings and specs before ordering, particularly for the 0.32-inch (approx. 8.1 mm) diameter.

Features

• Multi-hole design: Ensures a representative average sample across the flue cross-section.
• Optimal length: 7-inch (approx. 177.8 mm) shaft is suitable for a range of flue diameters.
• Compact diameter: 0.32-inch (approx. 8.1 mm) for easy insertion into standard test ports.
• Dedicated function: Specifically engineered for reliable mean CO calculation.

Technical Specifications

What's in the Box

• 1x Testo Multi-hole Probe Shaft (7 in. long, Ø 0.32 in.)

Using It on the Job

1. Ensure your Testo combustion analyser is properly calibrated and ready for use.
2. Connect the multi-hole probe shaft securely to your compatible Testo analyser's probe handle and hose assembly.
3. Carefully insert the probe into the flue gas sampling port, ensuring the multi-hole section is positioned correctly within the gas stream.
4. Allow sufficient time for the probe to stabilise to the flue gas temperature before taking readings.
5. Follow your analyser's specific instructions for initiating and completing a mean CO measurement cycle.
6. After use, carefully withdraw the probe, allow it to cool, and clean any soot or debris from the shaft.

Limitations & Safety Notes

• This probe shaft is only for use with compatible Testo combustion analysers and probe handles.
• Not designed for use in highly corrosive or high-pressure gas streams beyond typical flue gas conditions.
• Always monitor flue gas temperatures and operate within the specified limits of your analyser and probe assembly.
• Wear appropriate Personal Protective Equipment (PPE), including heat-resistant gloves, when handling hot probes during or after measurements.
• Always follow Australian standards and Safe Work guidance for combustion analysis.

Tradie Pro Tip: For best results with mean CO calculations, ensure your analyser is regularly serviced and calibrated. A clean probe, free of soot and debris, also makes a big difference to accuracy, especially when you're troubleshooting tricky combustion issues.

Pair With

Pair this multi-hole probe shaft with a Testo 300 series combustion analyser and a suitable flue gas hose for a complete, accurate measurement setup. Consider an analyser calibration kit to keep your readings spot on.