Compact Flue Gas Probe - 300 mm

This Testo compact flue gas probe (0600 9741) is your go-to for reliable combustion analysis, designed for techs who need straightforward, accurate readings on the job. Whether you're commissioning a new boiler or servicing an older heating unit, a solid probe makes all the difference when you're trying to nail down efficiency in an Aussie winter.

I've seen too many cheap probes clog up mid-job, but the easy-to-replace filter on this one helps keep your analyser clean and your readings on point.

Best For

• HVAC service technicians
• Plumbers working on hot water systems and boilers
• Commercial heating maintenance teams
• Apprentices learning combustion analysis

Compatibility

This compact probe is designed to hook up with your Testo 310, 327, and 300+ flue gas analysers. Its bayonet lock makes for a quick and solid connection every time, ensuring your flue gas, draught, and temperature paths are all linked through one point.

If you're running a different model, check fittings and specs before ordering.

Features

• Quick-connect bayonet lock for fast setup and secure attachment to your analyser.
• Integrated particle filter protects your analyser from soot and debris, extending its lifespan.
• Filter is easily replaceable without needing extra tools, so you can keep working efficiently.
• Thermocouple measures temperatures up to 500 °C, suitable for a range of combustion plants.
• Comes with a practical cone for a stable and sealed attachment point in the flue.
• Combines flue gas, draught, and temperature measurement paths into one coupling, streamlining your workflow.

Technical Specifications

What's in the Box

• Compact flue gas probe (300 mm shaft, 6 mm diameter)
• Integrated dirt filter
• Attachment cone
• Thermocouple (NiCr-Ni, Tmax 500 °C)
• Hose (1.5 m length)

Using It on the Job

1. Power down and lockout any combustion appliance before probing the flue for safety.
2. Insert the probe into the flue, using the included cone to ensure a tight seal and proper positioning for accurate readings.
3. Connect the probe's bayonet fitting to your compatible Testo flue gas analyser, ensuring it clicks firmly into place.
4. Perform your measurements for combustion efficiency, draught, and temperature as required.
5. After use, remove the probe, check the particle filter for build-up, and clean as necessary to prevent future clogs.
6. Store the probe carefully to protect the thermocouple and shaft from damage.

Limitations & Safety Notes

• Only use this probe with compatible Testo flue gas analysers as listed in the compatibility section.
• Ensure the probe's temperature limits (Tmax 500 °C) are not exceeded to prevent damage to the thermocouple and internal components.
• Always follow appliance manufacturer guidelines and Safe Work Australia practices when testing combustion systems.
• Regularly check and replace the particle filter to maintain analyser accuracy and prevent internal contamination.

Tradie Pro Tip

Keep an eye on that particle filter. It's easy to forget, but a clean filter means accurate readings and a longer life for your analyser's internal sensors. I always keep a spare pack in the kit.

Pair With

Pair with a spare particle filter (Testo part 0554 0040) to ensure you're always ready, and a Testo 300 series flue gas analyser for comprehensive combustion testing.