Testovent 417 Flow Funnel Kit

This Testovent 417 Flow Funnel Kit is your go-to for accurate volume flow measurements at ventilation grilles and plate outlets. It's an essential add-on for your Testo 417, 435, or 480 vane anemometer, designed to save you time by avoiding manual 'loop method' calculations.

Anyone who's spent an hour on a ladder trying to get decent readings from a ducted outlet knows how much of a time-saver proper funnels can be. Get reliable figures quickly, especially in tight spots or when balancing multiple zones across an Australian summer.

Best For

• HVAC technicians
• Maintenance and service teams
• Air balancing specialists
• Commissioning engineers

Compatibility

• Directly compatible with the Testo 417 Vane Anemometer.
• Also suitable for use with Ø 100 mm vane probes for the Testo 435 and Testo 480 multifunction measuring instruments.
• Square funnel accommodates outlets up to 300 x 300 mm.

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

Features

• Designed for accurate volume flow measurement at ventilation grilles and plate outlets.
• Includes one round funnel (Ø 200 mm, approx. 8-inch) for plate outlets.
• Includes one square funnel (330 x 330 mm, approx. 13-inch) for ventilation grilles.
• Eliminates the need for time-consuming 'loop method' calculations, saving you time on site.
• Comes with a practical carry case for easy transport and protection of the funnels.
• Optimised for reliable measurements below 50 CFM.

Technical Specifications

What's in the Box

• Round funnel (Ø 200 mm) for plate outlets
• Square funnel (330 x 330 mm) for ventilation grilles
• Practical carry case
• Instructions for use

Using It on the Job

1. Power up your compatible Testo vane anemometer (417, or 435/480 with appropriate 100 mm probe).
2. Select the correct funnel – the round one for plate outlets or the square one for grilles – and securely attach it to your anemometer's probe.
3. Position the funnel firmly against the ventilation outlet, ensuring a tight seal to capture the full air stream.
4. Take your readings. The funnels help normalise the flow, making it easier to get a stable, accurate volume flow measurement directly.
5. Record your data. Once done, detach the funnel and store both securely in the provided case to keep them protected for the next job.

Limitations & Safety Notes

• Requires a compatible Testo vane anemometer (417, or 435/480 with a 100 mm probe) to function.
• Optimised for measurements under 50 CFM; accuracy may vary outside this specified range.
• Ensure funnels are clean and free of debris before each use for accurate readings.
• Always follow the manufacturer's operating instructions for your specific Testo measuring device.
• Not intended for use with high-pressure systems or in corrosive environments.

Tradie Pro Tip

When you're dealing with multiple outlets, mark each one clearly after testing. Nothing's worse than thinking you're done, only to realise you've forgotten which outlet you've measured, especially on a hot roof space.

Pair With

Pair with a Testo 417 Vane Anemometer and a Testo flow straightener for comprehensive airflow diagnostics and precise volume flow measurements.